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My small book on

Grade-7 Biology Crosswords

Important keywords

June Jaydip

Grade7-Crossword-Using-Important-Biology- Keywords

CrosswordKeywords-G7-Biology©June.Jaydip 2

Across 2. Organelle in animal cells which helps in the cell division. 5. Medicine that kills disease-causing bacteria 6. Central part of a neuron is known as cell_______________. 10. Animals that eat other animals 15. Plastid containing coloured pigments. 16. Flattened sac-like vesicles of endoplasmic reticulum and golgi bodies. 17. Organisms that make their own food. Down 1. Oxidation of food in the absence of oxygen is known as ____________respiration. 2. Lateral meristematic tissue that produces new xylem and phloem cells in a stem 3. Plastid containing chlorophyll 4. Small molecule in a cell that can store, transfer or release energy. 5. Oxidation of food in the presence of oxygen is known as ___________respiration. 6. Condition caused due to deficiency of vitamin B. 7. Thin pipe that branch off from the trachea to enter a lung. 8. A cup shaped capsule at one end of the nephron. 9. Opening at one end of the digestive tract through which undigested food leaves the body. 11. Long fibre that extends from the cell body of a neuron.

12. Ball and______________ joint end of one bone is rounded and fits into the hollow part of the other bone. 13. Small thread like structure in the nucleus of a cell. 14. Structure in plant cell outside the cell membrane is known as cell____________.



Across 2. Central part of a neuron is known as cell_______________. 4. Small thread like structure in the nucleus of a cell. 6. Animals that eat other animals 7. Structure in plant cell outside the cell membrane is known as cell____________. 10. Plastid containing coloured pigments. 12. Condition caused due to deficiency of vitamin B. 14. Opening at one end of the digestive tract through which undigested food leaves the body. 15. Flattened sac-like vesicles of endoplasmic reticulum and golgi bodies. 17. Oxidation of food in the absence of oxygen is known as ____________respiration. Down 1. Organisms that make their own food. 2. a cup shaped capsule at one end of the nephron. 3. Ball and______________ joint end of one bone is rounded and fits into the hollow part of the other bone. 5. Long fibre that extends from the cell body of a neuron. 6. Plastid containing chlorophyll 8. Oxidation of food in the presence of oxygen is known as ___________respiration. 9. Small molecule in a cell that can store, transfer or release energy. 11. Organelle in animal cells which helps in the cell division. 13. Thin pipe that branch off from the trachea to enter a lung. 15. Lateral meristematic tissue that produces new xylem and phloem cells in a stem 16. Medicine that kills disease-causing bacteria



Across 3. Structure in plant cell outside the cell membrane is known as cell____________. 4. Long fibre that extends from the cell body of a neuron. 6. Plastid containing coloured pigments. 8. Condition caused due to deficiency of vitamin B. 10. Small molecule in a cell that can store, transfer or release energy. 12. Organisms that make their own food. 13. Opening at one end of the digestive tract through which undigested food leaves the body. 14. Oxidation of food in the presence of oxygen is known as ___________respiration. 17. Medicine that kills disease-causing bacteria 18. Ball and______________ joint end of one bone is rounded and fits into the hollow part of the other bone. 19. Flattened sac-like vesicles of endoplasmic reticulum and golgi bodies. Down 1. Oxidation of food in the absence of oxygen is known as ____________respiration. 2. Animals that eat other animals 5. Central part of a neuron is known as cell_______________. 6. Lateral meristematic tissue that produces new xylem and phloem cells in a stem 7. Organelle in animal cells which helps in the cell division. 9. A cup shaped capsule at one end of the nephron. 11. Plastid containing chlorophyll 15. Thin pipe that branch off from the trachea to enter a lung. 16. Small thread like structure in the nucleus of a cell.



Across 2. oxidation of food in the absence of oxygen is known as ____________respiration. 6. Structure in plant cell outside the cell membrane is known as cell____________. 8. Small thread like structure in the nucleus of a cell. 9. Oxidation of food in the presence of oxygen is known as ___________respiration. 11. Medicine that kills disease-causing bacteria 12. Long fibre that extends from the cell body of a neuron. 13. Plastid containing coloured pigments. 14. Central part of a neuron is known as cell_______________. 17. Flattened sac-like vesicles of endoplasmic reticulum and golgi bodies. 19. Opening at one end of the digestive tract through which undigested food leaves the body. Down 1. Organelle in animal cells which helps in the cell division. 3. Plastid containing chlorophyll 4. Lateral meristematic tissue that produces new xylem and phloem cells in a stem 5. Animals that eat other animals 7. Condition caused due to deficiency of vitamin B. 10. A cup shaped capsule at one end of the nephron. 11. Organisms that make their own food. 15. Ball and______________ joint end of one bone is rounded and fits into the hollow part of the other bone. 16. Thin pipe that branch off from the trachea to enter a lung. 18. Small molecule in a cell that can store, transfer or release energy.



Across 5. Tissues that join and supports different body parts. 7. Inner thick layer of the skin. 9. Layer of cells that covers the external surface of the body and also forms the lining of the internal organs. 10. Movement of plant parts in response to force of gravity. 11. Network of membranes in cytoplasm is known as ______________reticulum. 15. Red oxygen carrying pigment in RBCs. 16. Place where two or more bones meet together in the skeleton. 17. Jelly-like substance that fills most of the cell. Down 1. Muscle that contract to straighten a part of the body. 2. Joint that allows sliding movement between two bones is known as ________________joint. 3. Using oxygen to break down food and release energy in the body is known as ___________respiration. 4. Animals that feed on plants. 6. Folds of the inner membrane of mitochondrion. 7. Process of converting complex food into a simple absorbable form. 8. Organ that produces secretions 9. Outer layer of the skin. 12. Exchange of gases through skin of animals is known as ________________respiration. 13. Short branched extension of a neuron. 14. Muscle that contracts and causes a part of the body to bend towards the body. 15. Organisms that obtain food directly or indirectly from plants.



Across 3. Folds of the inner membrane of mitochondrion. 5. Network of membranes in cytoplasm is known as ______________reticulum. 6. Process of converting complex food into a simple absorbable form. 8. Red oxygen carrying pigment in RBCs. 12. Using oxygen to break down food and release energy in the body is known as ___________respiration. 15. Place where two or more bones meet together in the skeleton. 17. Movement of plant parts in response to force of gravity. 18. Animals that feed on plants. Down 1. Exchange of gases through skin of animals is known as ________________respiration. 2. Short branched extension of a neuron. 4. Muscle that contract to straighten a part of the body. 5. Layer of cells that covers the external surface of the body and also forms the lining of the internal organs. 7. Outer layer of the skin. 8. Organisms that obtain food directly or indirectly from plants. 9. Joint that allows sliding movement between two bones is known as ________________joint. 10. Jelly-like substance that fills most of the cell. 11. Muscle that contracts and causes a part of the body to bend towards the body. 13. Organ that produces secretions 14. Tissues that joins and supports different body parts. 16. Inner thick layer of the skin.



Across 5. Organisms that obtain food directly or indirectly from plants. 8. Network of membranes in cytoplasm is known as ______________reticulum. 9. Animals that feed on plants. 10. Muscle that contracts to straighten a part of the body. 12. Muscle that contracts and causes a part of the body to bend towards the body. 15. Joint that allows sliding movement between two bones is known as ________________joint. 16. Using oxygen to break down food and release energy in the body is known as ___________respiration. 18. Exchange of gases through skin of animals is known as ________________respiration. Down 1. Short branched extension of a neuron. 2. Inner thick layer of the skin. 3. Process of converting complex food into a simple absorbable form. 4. Outer layer of the skin. 6. Layer of cells that covers the external surface of the body and also forms the lining of the internal organs. 7. Organ that produces secretions 9. Red oxygen carrying pigment in RBCs. 11. Movement of plant parts in response to force of gravity. 13. Place where two or more bones meet together in the skeleton. 14. Folds of the inner membrane of mitochondrion. 17. Tissues that joins and supports different body parts. 18. Jelly-like substance that fills most of the cell.



Across 5. Organisms that obtain food directly or indirectly from plants. 6. Short branched extension of a neuron. 7. Outer layer of the skin. 11. Jelly-like substance that fills most of the cell. 13. Tissues that joins and supports different body parts. 14. Organ that produces secretions 15. Muscle that contracts and causes a part of the body to bend towards the body. 17. Joint that allows sliding movement between two bones is known as ________________joint. Down 1. Folds of the inner membrane of mitochondrion. 2. Muscle that contract to straighten a part of the body. 3. Process of converting complex food into a simple absorbable form. 4. Inner thick layer of the skin. 5. Animals that feed on plants. 8. Red oxygen carrying pigment in RBCs. 9. Using oxygen to break down food and release energy in the body is known as ___________respiration. 10. Layer of cells that covers the external surface of the body and also forms the lining of the internal organs. 11. Exchange of gases through skin of animals is known as ________________respiration. 12. Place where two or more bones meet together in the skeleton. 16. Network of membranes in cytoplasm is known as ______________reticulum. 17. Movement of plant parts in response to force of gravity.



Across 3. Colourless fluid connective tissue, it surrounds the cells of the body. 5. Small structure found in the cytoplasm of a cell. 7. Living organisms that can be seen through a microscope. 8. Ground substance of connective tissues in which cells are present. 11. Non-directional plant movements that occur in response to environmental stimuli is known as__________ movement. 12. Rod like organelle that helps gets energy from food. 13. Part of an organism made up of one or more types of tissues that perform a specific function. 15. Bundle of nerve cells that carry messages throughout the body. 16. Plant tissue made up of cells that divide continuously is known as _______________tissue. 17. Organ that filters wastes from the blood. Down 1. Tube that leads from the mouth to stomach. 2. System consisting of muscles in the body is known as ________________system. 3. Organ that produces bile that helps in digestion. 4. Strong band of connective tissue that hold two or more bone at joints 6. Movement of the entire body of the animal from one place to another. 9. Tiny fluid filled spaces in cartilaginous connective tissue. 10. Parenchyma tissue in leaves containing chloroplast. 14. Specialised cell that makes up the brain, spinal cord and nerves.



Across 4. Organ that produces bile that helps in digestion. 5. Specialised cell that makes up the brain, spinal cord and nerves. 7. Plant tissue made up of cells that divide continuously is known as _______________tissue. 8. Movement of the entire body of the animal from one place to another. 12. Bundle of nerve cells that carry messages throughout the body. 14. Non-directional plant movements that occur in response to environmental stimuli is known as__________ movement. 15. Organ that filters wastes from the blood. 16. Strong band of connective tissue that hold two or more bone at joints 17. Colourless fluid connective tissue, it surrounds the cells of the body. Down 1. System consisting of muscles in the body is known as ________________system. 2. Parenchyma tissue in leaves containing chloroplast. 3. Small structure found in the cytoplasm of a cell. 6. Living organisms that can be seen through a microscope. 7. Rod like organelle that helps gets energy from food. 9. Ground substance of connective tissues in which cells are present. 10. Part of an organism made up of one or more types of tissues that perform a specific function.

11. Tube that leads from the mouth to stomach. 13. Tiny fluid filled spaces in cartilaginous connective tissue.



Across 6. Movement of the entire body of the animal from one place to another. 9. Parenchyma tissue in leaves containing chloroplast. 10. Part of an organism made up of one or more types of tissues that perform a specific function. 11. Specialised cell that makes up the brain, spinal cord and nerves. 13. Ground substance of connective tissues in which cells are present. 16. Non-directional plant movements that occur in response to environmental stimuli is known as__________ movement. Down 1. System consisting of muscles in the body is known as ________________system. 2. Colourless fluid connective tissue, it surrounds the cells of the body. 3. Tube that leads from the mouth to stomach. 4. Living organisms that can be seen through a microscope. 5. Plant tissue made up of cells that divide continuously is known as _______________tissue. 6. Organ that produces bile that helps in digestion. 7. Bundle of nerve cells that carry messages throughout the body. 8. Strong band of connective tissue that hold two or more bone at joints 10. Small structure found in the cytoplasm of a cell. 12. Organ that filters wastes from the blood. 14. rod like organelle which helps get energy from food. 15. tiny fluid filled spaces in cartilaginous connective tissue.



Across 3. Organ that produces bile that helps in digestion. 6. Tube that leads from the mouth to stomach. 7. System consisting of muscles in the body is known as ________________system. 11. Parenchyma tissue in leaves containing chloroplast. 14. Small structure found in the cytoplasm of a cell. 16. Specialised cell that makes up the brain, spinal cord and nerves. 17. Part of an organism made up of one or more types of tissues that perform a specific function. 18. Tiny fluid filled spaces in cartilaginous connective tissue. Down 1. Rod like organelle that helps gets energy from food. 2. Living organisms that can be seen through a microscope. 4. Strong band of connective tissue that hold two or more bone at joints 5. Non-directional plant movements that occur in response to environmental stimuli is known as__________ movement. 8. Colourless fluid connective tissue, it surrounds the cells of the body. 9. Organ that filters wastes from the blood. 10. Bundle of nerve cells that carry messages throughout the body. 12. Plant tissue made up of cells that divide continuously is known as _______________tissue. 13. Ground substance of connective tissues in which cells are present. 15. Movement of the entire body of the animal from one place to another.



Across 1. Process of taking in oxygen and using it to release energy from food. 4. Elongated cell of phloem having minute pores. 6. Plant tissue made up of cells that cannot divide. 8. Sac like organelle that stores food, water or wastes 9. Animals that have a constant body temperature is known as ______________blooded animal. 11. Animals that consume dead animals and dispose them. 12. Xylem and phloem tissue present together is known as __________bundle. 14. A group of living organisms that can breed among themselves 16. A spiral shaped bacteria 17. Loss of water from leaves through the stomata. 19. Liquid part of blood in which the blood cells float.

20. Non- living part of xylem that has tube like cells joined end to end. 21. Connective tissue that joins skeletal muscles to bones. 22. Cells in blood that fights disease-causing microorganisms. 23. Group consisting of only single celled animals. Down 2. Cells that have similar structure and perform similar functions. 3. Complex vascular tissue that transports water and mineral salts 5. Cell that transports oxygen. 7. Tube like dead cell in xylem 8. Small round membranous structure in a cell. 10. Tube passing through the neck that divides into two bronchi.

13. Reaction of an organism to a stimulus. 15. Plant tissue composed of simple cells with thin walls. 18. Hard and strong supporting tissue made up of dead and thick walled cells. 20. Small bone of a vertebral column.



Across 1. Plant tissue made up of cells that cannot divide. 4. Animals that have a constant body temperature is known as ______________blooded animal. 5. Animals that consume dead animals and dispose them. 9. A spiral shaped bacteria 10. Cell that transports oxygen. 12. Small round membranous structure in a cell. 14. Loss of water from leaves through the stomata. 16. A group of living organisms that can breed among themselves 17. Hard and strong supporting tissue made up of dead and thick walled cells. 18. Sac like organelle that stores food, water or wastes 20. Tube like dead cell in xylem

21. Liquid part of blood in which the blood cells float. Down 2. Cells that have similar structure and perform similar functions.

3. Non-living part of xylem that has tube like cells joined end to end. 4. Cells in blood that fights disease-causing microorganisms. 6. Xylem and phloem tissue present together is known as __________bundle. 7. Tube passing through the neck that divides into two bronchi. 8. Complex vascular tissue that transports water and mineral salts 10. Reaction of an organism to a stimulus. 11. Group consisting of only single celled animals. 13. Plant tissue composed of simple cells with thin walls. 15. Elongated cell of phloem having minute pores. 18. Small bone of a vertebral column. 19. Process of taking in oxygen and using it to release energy from food. 20. Connective tissue that joins skeletal muscles to bones.



Across 4. Complex vascular tissue that transports water and mineral salts 5. Tube like dead cell in xylem 8. Group consisting of only single celled animals. 9. Non-living part of xylem that has tube like cells joined end to end. 11. Process of taking in oxygen and using it to release energy from food. 12. Connective tissue that joins skeletal muscles to bones. 14. Elongated cell of phloem having minute pores. 15. Cells that have similar structure and perform similar functions. 17. Liquid part of blood in which the blood cells float. 18. Cell that transports oxygen. 20. A group of living organisms that can breed among themselves 21. Cells in blood that fights disease-causing microorganisms. 22. Plant tissue made up of cells that cannot divide. Down 1. Loss of water from leaves through the stomata. 2. Xylem and phloem tissue present together is known as __________bundle. 3. Small round membranous structure in a cell. 6. Animals that have a constant body temperature is known as ______________blooded animal. 7. Sac like organelle that stores food, water or wastes 9. Small bone of a vertebral column. 10. Plant tissue composed of simple cells with thin walls. 13. Reaction of an organism to a stimulus. 14. A spiral shaped bacteria 15. Tube passing through the neck that divides into two bronchi. 16. Hard and strong supporting tissue made up of dead and thick walled cells. 19. Animals that consume dead animals and dispose them.



Across 4. Tube like dead cell in xylem 6. Elongated cell of phloem having minute pores. 9. A group of living organisms that can breed among themselves 10. Tube passing through the neck that divides into two bronchi. 12. Cells that have similar structure and perform similar functions. 14. Loss of water from leaves through the stomata. 16. Small bone of a vertebral column. 18. Animals that consume dead animals and dispose them. 21. Process of taking in oxygen and using it to release energy from food. 23. Plant tissue composed of simple cells with thin walls. 24. Group consisting of only single celled animals. 25. Animals that has a constant body temperature is known as ______________blooded animal. Down 1. Plant tissue made up of cells that cannot divide. 2. Sac like organelle which stores food, water or wastes 3. Small round membranous structure in a cell. 5. Complex vascular tissue that transports water and mineral salts 7. Non-living part of xylem that has tube like cells joined end to end. 8. Cells in blood that fights disease-causing microorganisms. 11. Reaction of an organism to a stimulus. 13. Hard and strong supporting tissue made up of dead and thick walled cells. 15. Cell that transports oxygen. 17. Connective tissue that joins skeletal muscles to bones. 19. A spiral shaped bacteria 20. Xylem and phloem tissue present together is known as __________bundle. 22. Liquid part of blood in which the blood cells float.



Across 2. Lateral meristematic tissue that produces new xylem and phloem cells in a stem 4. Ball and______________ joint end of one bone is rounded and fits into the hollow part of the other bone. 5. Central part of a neuron is known as cell_______________. 6. Small thread like structure in the nucleus of a cell. 9. Folds of the inner membrane of mitochondrion. 14. Organelle in animal cells which helps in the cell division. 15. Structure in plant cell outside the cell membrane is known as cell____________. 16. Movement of plant parts in response to force of gravity. 17. Sac like organelle that stores food, water or wastes

Down 1. Condition caused due to deficiency of vitamin B. 3. Medicine that kills disease-causing bacteria 7. Animals that consume dead animals and dispose them. 8. Xylem and phloem tissue present together is known as __________bundle. 10. Animals that eat other animals 11. Thin pipe that branch off from the trachea to enter a lung.

12. Opening at one end of the digestive tract through which undigested food leaves the body. 13. Organ that produces secretions



Across 1. Sac like organelle that stores food, water or wastes 3. Medicine that kills disease-causing bacteria 6. Ball and______________ joint end of one bone is rounded and fits into the hollow part of the other bone. 8. Structure in plant cell outside the cell membrane is known as cell____________. 10. Organelle in animal cells which helps in the cell division. 11. Movement of plant parts in response to force of gravity. 14. Condition caused due to deficiency of vitamin B. 15. Opening at one end of the digestive tract through which undigested food leaves the body. Down 2. Small thread like structure in the nucleus of a cell. 4. Animals that eat other animals 5. Xylem and phloem tissue present together is known as __________bundle. 6. Animals that consume dead animals and dispose them. 7. Thin pipe that branch off from the trachea to enter a lung. 9. Central part of a neuron is known as cell_______________. 10. Lateral meristematic tissue that produces new xylem and phloem cells in a stem 12. Folds of the inner membrane of mitochondrion. 13. Organ that produces secretions



Across 6. Structure in plant cell outside the cell membrane is known as cell____________. 8. Medicine that kills disease-causing bacteria 9. Central part of a neuron is known as cell_______________. 10. Condition caused due to deficiency of vitamin B. 12. Thin pipe that branch off from the trachea to enter a lung. 14. Folds of the inner membrane of mitochondrion. 16. Sac like organelle that stores food, water or wastes 17. Movement of plant parts in response to force of gravity.

Down 1. Animals that eat other animals 2. Small thread like structure in the nucleus of a cell. 3. Xylem and phloem tissue present together is known as __________bundle. 4. Organ that produces secretions 5. Organelle in animal cells which helps in the cell division. 7. Lateral meristematic tissue that produces new xylem and phloem cells in a stem 11. Opening at one end of the digestive tract through which undigested food leaves the body. 13. Animals that consume dead animals and dispose them. 15. Ball and______________ joint end of one bone is rounded and fits into the hollow part of the other bone.



Across 1. Structure in plant cell outside the cell membrane is known as cell____________. 7. Folds of the inner membrane of mitochondrion. 10. Animals that eat other animals 11. Movement of plant parts in response to force of gravity. 13. Xylem and phloem tissue present together is known as __________bundle. 16. Organelle in animal cells which helps in the cell division. Down 2. Medicine that kills disease-causing bacteria 3. Condition caused due to deficiency of vitamin B. 4. Thin pipe those branches off from the trachea to enter a lung. 5. Sac like organelle that stores food, water or wastes 6. Animals that consume dead animals and dispose them. 8. Ball and______________ joint end of one bone is rounded and fits into the hollow part of the other bone. 9. Opening at one end of the digestive tract through which undigested food leaves the body. 12. Lateral meristematic tissue that produces new xylem and phloem cells in a stem 14. Small thread like structure in the nucleus of a cell. 15. Organ that produces secretions



Across 5. Plant tissue made up of cells that divide continuously is known as _______________tissue. 8. Exchange of gases through skin of animals is known as ________________respiration. 9. Muscle that contract to straighten a part of the body. 10. Colourless fluid connective tissue, it surrounds the cells of the body. 12. Layer of cells that covers the external surface of the body and also forms the lining of the internal organs. 14. Oxidation of food in the absence of oxygen is known as ____________respiration. 16. Plastid containing chlorophyll 17. Joint that allows sliding movement between two bones is known as ________________joint. Down 1. System consisting of muscles in the body is known as ________________system. 2. Oxidation of food in the presence of oxygen is known as ___________respiration. 3. Ground substance of connective tissues in which cells are present. 4. A cup shaped capsule at one end of the nephron. 6. Outer layer of the skin. 7. Small round membranous structure in a cell. 11. Red oxygen carrying pigment in RBCs. 13. Network of membranes in cytoplasm is known as ______________reticulum. 15. Jelly-like substance that fills most of the cell.



Across 3. Red oxygen carrying pigment in RBCs. 6. Plastid containing chlorophyll 9. Outer layer of the skin. 12. Oxidation of food in the presence of oxygen is known as ___________respiration. 13. Colourless fluid connective tissue, it surrounds the cells of the body. 15. Joint that allows sliding movement between two bones is known as ________________joint. 16. Network of membranes in cytoplasm is known as ______________reticulum. Down 1. Exchange of gases through skin of animals is known as ________________respiration. 2. System consisting of muscles in the body is known as ________________system. 4. Muscle that contract to straighten a part of the body. 5. Ground substance of connective tissues in which cells are present. 7. A cup shaped capsule at one end of the nephron. 8. Small round membranous structure in a cell. 10. Layer of cells that covers the external surface of the body and also forms the lining of the internal organs. 11. Plant tissue made up of cells that divide continuously is known as _______________tissue. 14. Oxidation of food in the absence of oxygen is known as ____________respiration. 17. Jelly-like substance that fills most of the cell.



Across 4. Plant tissue made up of cells that divide continuously is known as _______________tissue. 7. Jelly-like substance that fills most of the cell. 11. Colourless fluid connective tissue, it surrounds the cells of the body. 12. Oxidation of food in the absence of oxygen is known as ____________respiration. 14. Ground substance of connective tissues in which cells are present. 15. Joint that allows sliding movement between two bones is known as ________________joint. 16. Layer of cells that covers the external surface of the body and also forms the lining of the internal organs. Down 1. Red oxygen carrying pigment in RBCs. 2. Network of membranes in cytoplasm is known as ______________reticulum. 3. Oxidation of food in the presence of oxygen is known as ___________respiration. 4. System consisting of muscles in the body is known as ________________system. 5. Plastid containing chlorophyll 6. Muscle that contract to straighten a part of the body. 8. Exchange of gases through skin of animals is known as ________________respiration. 9. Small round membranous structure in a cell. 10. A cup shaped capsule at one end of the nephron. 13. Outer layer of the skin.



Across 4. Joint that allows sliding movement between two bones is known as ________________joint. 5. Oxidation of food in the presence of oxygen is known as ___________respiration. 7. Small round membranous structure in a cell. 9. System consisting of muscles in the body is known as ________________system. 12. Plastid containing chlorophyll 13. Jelly-like substance that fills most of the cell. 15. Exchange of gases through skin of animals is known as ________________respiration. 16. a cup shaped capsule at one end of the nephron. Down 1. Network of membranes in cytoplasm is known as ______________reticulum. 2. Red oxygen carrying pigment in RBCs. 3. Oxidation of food in the absence of oxygen is known as ____________respiration. 6. Muscle that contract to straighten a part of the body. 8. Layer of cells that covers the external surface of the body and also forms the lining of the internal organs. 9. Plant tissue made up of cells that divide continuously is known as _______________tissue. 10. Outer layer of the skin. 11. Ground substance of connective tissues in which cells are present. 14. Colourless fluid connective tissue, it surrounds the cells of the body.



Across 2. Inner thick layer of the skin. 4. Animals that feed on plants. 5. Muscle that contracts and causes a part of the body to bend towards the body. 8. Organisms that make their own food. 11. Organ that filters wastes from the blood. 12. Small molecule in a cell that can store, transfer or release energy. 14. Long fibre that extends from the cell body of a neuron. 15. Strong band of connective tissue that hold two or more bone at joints 16. Group of organ that work together is known as _____________system. 17. Process of converting complex food into a simple absorbable form. Down 1. Organ that produces bile that helps in digestion. 3. Using oxygen to break down food and release energy in the body is known as ___________respiration. 6. Movement of the entire body of the animal from one place to another. 7. Place where two or more bones meet together in the skeleton. 9. Organisms that obtain food directly or indirectly from plants. 10. Short branched extension of a neuron. 13. Tiny fluid filled spaces in cartilaginous connective tissue.



Across 5. Using oxygen to break down food and release energy in the body is known as ___________respiration. 8. Strong band of connective tissue that hold two or more bone at joints 10. Place where two or more bones meet together in the skeleton. 11. Long fibre that extends from the cell body of a neuron. 13. Inner thick layer of the skin. 14. Tiny fluid filled spaces in cartilaginous connective tissue. 16. Animals that feed on plants. Down 1. Movement of the entire body of the animal from one place to another. 2. Organ that filters wastes from the blood. 3. Short branched extension of a neuron. 4. Muscle that contracts and causes a part of the body to bend towards the body. 6. Process of converting complex food into a simple absorbable form. 7. Organisms that obtain food directly or indirectly from plants. 9. Small molecule in a cell that can store, transfer or release energy. 12. Organ that produces bile that helps in digestion. 15. Organisms that make their own food. 17. Group of organ that work together is known as _____________system.



Across 3. Tiny fluid filled spaces in cartilaginous connective tissue. 4. Place where two or more bones meet together in the skeleton. 7. Animals that feed on plants. 9. Inner thick layer of the skin. 11. Short branched extension of a neuron. 12. Using oxygen to break down food and release energy in the body is known as ___________respiration. 13. Small molecule in a cell that can store, transfer or release energy. 14. Long fibre that extends from the cell body of a neuron. 16. Process of converting complex food into a simple absorbable form. 17. Organisms that make their own food. Down 1. Muscle that contracts and causes a part of the body to bend towards the body. 2. Organ that produces bile that helps in digestion. 5. Strong band of connective tissue that hold two or more bone at joints 6. Organisms that obtain food directly or indirectly from plants. 8. Organ that filters wastes from the blood. 10. Group of organ that work together is known as _____________system. 15. Movement of the entire body of the animal from one place to another.



Across 3. Inner thick layer of the skin. 5. Long fibre that extends from the cell body of a neuron. 6. Organ that produces bile that helps in digestion. 8. Strong band of connective tissue that hold two or more bone at joints 10. Animals that feed on plants. 11. Using oxygen to break down food and release energy in the body is known as ___________respiration. 12. Small molecule in a cell that can store, transfer or release energy. 14. Place where two or more bones meet together in the skeleton. 15. Organisms that obtain food directly or indirectly from plants. Down 1. Movement of the entire body of the animal from one place to another. 2. Group of organ that work together is known as _____________system. 3. Short branched extension of a neuron. 4. Muscle that contracts and causes a part of the body to bend towards the body. 7. Tiny fluid filled spaces in cartilaginous connective tissue. 9. Process of converting complex food into a simple absorbable form. 13. Organisms that make their own food.



Across 1. Tube that leads from the mouth to stomach. 3. Animal tissue that forms the muscles in the body. 6. Living organisms that can be seen through a microscope. 9. Complex vascular tissue that transports water and mineral salts 11. Tube passing through the neck that divides into two bronchi. 12. Tube like dead cell in xylem 13. Plastid containing coloured pigments. 14. Specialised cell that makes up the brain, spinal cord and nerves. 15. Flattened sac-like vesicles of endoplasmic reticulum and golgi bodies. 16. Bundle of nerve cells that carry messages throughout the body. Down 2. A spiral shaped bacteria 4. Elongated cell of phloem having minute pores. 5. Part of an organism made up of one or more types of tissues that perform a specific function. 7. Small structure found in the cytoplasm of a cell. 8. Rod like organelle that helps get energy from food. 10. Non-directional plant movements that occur in response to environmental stimuli is known as__________ movement. 15. Tissues that join and supports different body parts.



Across 4. Part of an organism made up of one or more types of tissues that perform a specific function. 5. Flattened sac-like vesicles of endoplasmic reticulum and golgi bodies. 6. Non-directional plant movements that occur in response to environmental stimuli is known as__________ movement. 9. Tube passing through the neck that divides into two bronchi. 10. Complex vascular tissue that transports water and mineral salts 13. Tube that leads from the mouth to stomach. 14. Plastid containing coloured pigments. 15. Animal tissue that forms the muscles in the body. 16. Elongated cell of phloem having minute pores. 17. Specialised cell that makes up the brain, spinal cord and nerves. Down 1. Rod like organelle that helps gets energy from food. 2. Tube like dead cell in xylem 3. Living organisms that can be seen through a microscope. 7. A spiral shaped bacteria 8. Bundle of nerve cells that carry messages throughout the body. 11. Tissues that join and supports different body parts. 12. Small structure found in the cytoplasm of a cell.



Across 3. Tube like dead cell in xylem 4. Tube that leads from the mouth to stomach. 5. Specialised cell that makes up the brain, spinal cord and nerves. 6. A spiral shaped bacteria 8. Part of an organism made up of one or more types of tissues that perform a specific function. 9. Animal tissue that forms the muscles in the body. 11. Non-directional plant movements that occur in response to environmental stimuli is known as__________ movement. 12. Bundle of nerve cells that carry messages throughout the body. 13. Small structure found in the cytoplasm of a cell. 14. Flattened sac-like vesicles of endoplasmic reticulum and Golgi bodies. 15. Elongated cell of phloem having minute pores. 16. Complex vascular tissue that transports water and mineral salts Down 1. Plastid containing coloured pigments. 2. Rod like organelle that helps get energy from food. 7. Tube passing through the neck that divides into two bronchi. 9. Living organisms that can be seen through a microscope. 10. Tissues that join and supports different body parts.



Across 5. Rod like organelle that helps get energy from food. 8. Flattened sac-like vesicles of endoplasmic reticulum and Golgi bodies. 10. Tube that leads from the mouth to stomach. 12. Tissues that join and supports different body parts. 13. A spiral shaped bacteria 14. Complex vascular tissue that transports water and mineral salts 15. Tube passing through the neck that divides into two bronchi. 16. Plastid containing coloured pigments. Down 1. Living organisms that can be seen through a microscope. 2. Non-directional plant movements that occur in response to environmental stimuli is known as__________ movement. 3. Specialised cell that makes up the brain, spinal cord and nerves. 4. Part of an organism made up of one or more types of tissues that perform a specific function. 6. Tube like dead cell in xylem 7. Bundle of nerve cells that carry messages throughout the body. 9. Animal tissue that forms the muscles in the body. 10. Small structure found in the cytoplasm of a cell. 11. Elongated cell of phloem having minute pores.



Across 8. Plant tissue composed of simple cells with thin walls. 9. Loss of water from leaves through the stomata. 10. Cells in blood that fights disease-causing microorganisms. 13. Parenchyma tissue in leaves containing chloroplast. 14. Liquid part of blood in which the blood cells float. 15. Process of taking in oxygen and using it to release energy from food. 17. A group of living organisms that can breed among themselves Down 1. Plant tissue made up of cells that cannot divide. 2. Reaction of an organism to a stimulus. 3. Hard and strong supporting tissue made up of dead and thick walled cells. 4. Animals that has a constant body temperature is known as ______________blooded animal. 5. Cell that transports oxygen. 6. Permanent tissue in plants made of xylem and phloem is known as ___________tissue. 7. Small bone of a vertebral column. 8. Group consisting of only single celled animals. 11. Cells that have similar structure and perform similar functions. 12. Non-living part of xylem that has tube like cells joined end to end. 16. Connective tissue that joins skeletal muscles to bones.



Across 2. Cells in blood that fights disease-causing microorganisms. 4. Animals that has a constant body temperature is known as ______________blooded animal. 6. Cells that have similar structure and perform similar functions. 8. Process of taking in oxygen and using it to release energy from food. 10. Plant tissue composed of simple cells with thin walls. 14. Plant tissue made up of cells that cannot divide. 15. A group of living organisms that can breed among themselves 16. Parenchyma tissue in leaves containing chloroplast. 17. Connective tissue that joins skeletal muscles to bones. Down 1. Permanent tissue in plants made of xylem and phloem is known as ___________tissue. 3. Group consisting of only single celled animals. 5. Non-living part of xylem that has tube like cells joined end to end. 7. Hard and strong supporting tissue made up of dead and thick walled cells. 9. Loss of water from leaves through the stomata. 10. Liquid part of blood in which the blood cells float. 11. Cell that transports oxygen. 12. Reaction of an organism to a stimulus. 13. Small bone of a vertebral column.



Across 3. Non-living part of xylem that has tube like cells joined end to end. 5. Reaction of an organism to a stimulus. 8. Cell that transports oxygen. 9. Plant tissue composed of simple cells with thin walls. 10. Hard and strong supporting tissue made up of dead and thick walled cells. 11. Cells that have similar structure and perform similar functions. 12. Parenchyma tissue in leaves containing chloroplast. 14. Connective tissue that joins skeletal muscles to bones. 15. Loss of water from leaves through the stomata. 16. Small bone of a vertebral column. Down 1. Process of taking in oxygen and using it

to release energy from food. 2. A group of living organisms that can breed among themselves 4. Plant tissue made up of cells that cannot divide. 6. Cells in blood that fights disease-causing microorganisms. 7. Animals that has a constant body temperature is known as ______________blooded animal. 12. Group consisting of only single celled animals. 13. Liquid part of blood in which the blood cells float. 16. Permanent tissue in plants made of xylem and phloem is known as ___________tissue.



Across 4. Hard and strong supporting tissue made up of dead and thick walled cells. 5. Connective tissue that joins skeletal muscles to bones. 7. Cell that transports oxygen. 8. Non-living part of xylem that has tube like cells joined end to end. 10. Liquid part of blood in which the blood cells float. 12. Small bone of a vertebral column. 14. Parenchyma tissue in leaves containing chloroplast. 16. Loss of water from leaves through the stomata. Down 1. Cells in blood that fights disease-causing microorganisms. 2. Reaction of an organism to a stimulus. 3. Plant tissue composed of simple cells with thin walls. 6. Process of taking in oxygen and using it to release energy from food. 9. Animals that have a constant body temperature is known as ______________blooded animal. 11. Plant tissue made up of cells that cannot divide. 13. A group of living organisms that can breed among themselves 15. Permanent tissue in plants made of xylem and phloem is known as ___________tissue. 16. Cells that have similar structure and perform similar functions. 17. Group consisting of only single celled animals.



Index of keywords used in these crosswords A

Aerobic oxidation of food in the presence of oxygen is known as ___________respiration. Anaerobic oxidation of food in the absence of oxygen is known as ____________respiration. Antibiotic medicine that kills disease causing bacteria Anus opening at one end of the digestive tract through which undigested food leaves the body. ATP small molecule in a cell which can store, transfer or release energy. Autotrophs organisms that make their own food. Axon long fibre that extends from the cell body of a neuron.

B

Beriberi condition caused due to deficiency of vitamin B. Bowmans a cup shaped capsule at one end of the nephron. Bronchus thin pipe that branches off from the trachea to enter a lung. Body central part of a neuron is known as cell_______________.

C

Cambium lateral meristematic tissue that produces new xylem and phloem cells in a stem Carnivores animals that eat other animals Centriole organelle in animal cells which helps in the cell division. Chloroplast plastid containing chlorophyll Chromoplast plastid containing coloured pigments. Chromosome small thread like structure in the nucleus of a cell. Cisternae flattened sac-like vesicles of endoplasmic reticulum and golgi bodies. Connective tissues that joins and supports different body parts. Cristae folds of the inner membrane of mitochondrion.

Cutaneous exchange of gases through skin of animals is known as ________________respiration. Cytoplasm jelly-like substance that fills most of the cell.

D

Dendrite short branched extension of a neuron. Dermis inner thick layer of the skin. Digestion process of converting complex food into a simple absorbable form.

E

Endoplasmic network of membranes in cytoplasm is known as ______________reticulum. Epidermis outer layer of the skin. Epithelial layer of cells that covers the external surface of the body and also forms the lining of the internal organs. Extensor muscle that contracts to straighten a part of the body.

F

Flexor muscle that contracts and causes a part of the body to bend towards the body.

G Geotropism movement of plant parts in response to force of gravity. Gland organ that produces secretions Gliding joint that allows sliding movement between two bones is known as ________________joint.

H

Haemoglobin red oxygen carrying pigment in RBCs. Herbivore animals that feed on plants. Heterotrophs organisms that obtain food directly or indirectly from plants.



I Internal using oxygen to break down food and release energy in the body is known as ___________respiration.

J

Joint place where two or more bones meet together in the skeleton. K Kidney organ that filters wastes from the blood.

L

Lacuna tiny fluid filled spaces in cartilaginous connective tissue. Ligament strong band of connective tissue that hold two or more bone at joints Liver organ that produces bile which helps in digestion. Locomotion movement of the entire body of the animal from one place to another. Lymph colourless fluid connective tissue, it surrounds the cells of the body.

M

Matrix ground substance of connective tissues in which cells are present. Meristematic plant tissue made up of cells that divide continuously is known as _______________tissue. Microorganism living organisms that can be seen through a microscope. Mitochondrion rod like organelle which helps get energy from food. Muscular system consisting of muscles in the body is known as ________________system. Muscular animal tissue that forms the muscles in the body.

N Nastic non-directional plant movements that occur in response to environmental stimuli is known as__________ movement. Nerve bundle of nerve cells that carry messages throughout the body. Neuron specialised cell that makes up the brain, spinal cord and nerves.

O

Oesophagus tube that leads from the mouth to stomach. Organ part of an organism made up of one or more types of tissues which perform a specific function. Organ group of organ that work together is known as _____________system. Organelle small structure found in the cytoplasm of a cell.

P

Palisade parenchyma tissue in leaves containing chloroplast. Parenchyma plant tissue composed of simple cells with thin walls. Permanent plant tissue made up of cells that cannot divide. Plasma liquid part of blood in which the blood cells float. Protozoa group consisting of only single celled animals.

R

RBC cell that transports oxygen. Respiration process of taking in oxygen and using it to release energy from food. Response reaction of an organism to a stimulus.

S Scavengers animals that consume dead animals and dispose them. Sclerenchyma hard and strong supporting tissue made up of dead and thick walled cells. Sieve elongated cell of phloem having minute pores. Socket Ball and______________ joint end of one bone is rounded and fits into the hollow part of the other bone.



Species a group of living organisms which can breed among themselves Spirilla a spiral shaped bacteria

T

Tendon connective tissue that joins skeletal muscles to bones. Tissue cells that have similar structure and perform similar functions. Trachea tube passing through the neck that divides into two bronchi. Tracheid tube like dead cell in xylem Transpiration loss of water from leaves through the stomata.

V

Vacuole sac like organelle which stores food, water or wastes Vascular xylem and phloem tissue present together is known as __________bundle. Vascular permanent tissue in plants made of xylem and phloem is known as ___________tissue. Vertebra small bone of a vertebral column. Vesicle small round membranous structure in a cell. Vessel non living part of xylem that has tube like cells joined end to end.

W

Wall structure in plant cell outside the cell membrane is known as cell____________. Warm animals that has a constant body temperature is known as ______________blooded animal. WBC cells in blood that fights disease causing microorganisms.

X

Xylem complex vascular tissue that transports water and mineral salts



About The Author

[June Jaydip] Born to Tamil parents, June has taken

her first lessen in various parts of northern India, including Leh,

Jalandhar, Assam and UP. She has completed her graduation in Science Education (B.Sc.Ed) from Regional

Institute of Education, Mysore. There after she has had her post-graduation

in Environmental Science from Sikkim Manipal University of health and Medicine. June started her career as Elementary coordinator at British International School. She has served

the Government of Maldives, as HOD science and at present she is working with the Amber Valley Residential School, Chikmagalur. Teaching

younger minds is her first love and various creative patches she has learnt

from RIE are fabricated in to her classroom. She likes teaching and

learning new techniques to make the learning and teaching both enjoyable.

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