cell organization
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The Different Jobs of Cells. 2. Cell Organization. Many-celled organisms are not just mixed-up collections of different types of cells. Cells are organized into systems that, together, perform functions that keep the organism healthy and alive. organelle. - PowerPoint PPT PresentationTRANSCRIPT
Cell Organization
• Many-celled organisms are not just mixed-up collections of different types of cells.
• Cells are organized into systems that, together, perform functions that keep the organism healthy and alive.
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organelle
• Parts of a cell that have a special job found inside in the cytoplasm
• Ex. nucleus
• vacuole
• mitochondria
• chloroplast
cell• Smallest unit of life
• Ex. Bone cell, muscle cell, nerve cell, etc.
Tissues and Organs
• Cells that are alike are organized into tissue (TIH shewz).
• Tissues are groups of similar cells that all do the same sort of work.
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Blood is a Tissue
Tissues
• Ex.
• Blood made of blood cells
• Bone tissue made of bone cells
Tissues and Organs
• Different types of tissues working together can form a structure called an organ (OR gun).
• The stomach is an organ that includes muscle tissue, nerve tissue, and blood tissue.
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• Other human organs include the heart and the kidneys.
Organs Systems• A group of organs that work together to do
a certain job is called an organ system. • Organ systems found
in your body include the respiratory system, the circulatory system, the reproductive system, and the nervous system.
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Organ systems
• Nervous system includes the brain, nerves and spinal cord
• Respiratory system is the nose, trachea, and lungs
Organs Systems
• Organ systems also work together.
• For example, the muscular system has more than 600 muscles that are attached to bones.
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• The contracting cells of muscle tissue cause your bones, which are part of the skeletal system, to move.
organism
• A living thing
• Ex. Humans, trees, grass animals
Smallest to largest-order from top to bottom
tissue, organ system, cell, organism, organ, organelle (cell part)
Smallest to largest
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Question 2
Which is the correct order of cell organization?
A. cell, tissue, organ system, organB. cell, organ, tissue, organ systemC. cell, tissue, organ, organ systemD. tissue, cell, organ, organ system
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Answer
The answer is C. Cells are organized into systems that, together, perform functions that keep the organism alive.