cell structure 7 th grade. do now… ◦define organelles, nucleus, chloroplasts, and mitochondria...
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CELL STRUCTURE7th Grade
Do Now…
◦Define organelles, nucleus, chloroplasts, and mitochondria on index cards
◦Vocabulary Check will be tomorrow
Objectives
Students will…◦Describe the development of the cell theory◦Identify the names and functions of each part of a cell
Cell Theory
◦1) All organisms are made up of one or more cells.
◦2) The cell is the basic unit of organization of organisms.
◦3) All cells come from cells.◦Wacky History of Cell Theory
Visualizing Microscopes ◦Turn to pgs. 222-223 in your textbook
Microscope Facts
Brightfield/Darkfield
Leeuwenhoek
Transmission ElectronPhase Contrast
Scanning Electron
Fluorescence
Cellular Organization
◦http://www.cellsalive.com/cells/bactcell.htm (Prokaryotic)
◦Label bacteria cell worksheet.
◦Prokaryotic cells-are only found in one-celled organisms like bacteria.
◦All cells must constantly take in nutrients, store, produce, breakdown substances and take in and use energy.
◦Prokaryotic vs. Eukaryotic
For Next Time…
◦Read pgs. 226-231◦Define endoplasmic reticulum, golgi bodies, tissue, organ and organ system.
CELL STRUCTURE7th Grade
Do Now…
◦Which of the scientists who contributed to the development of the cell theory is the most important? Explain your thoughts.
Objectives
Students will…◦Review cell structure vocabulary
Vocabulary Review Time
◦With a partner, review your cell structure vocabulary cards. Make sure that you have the same number of cards and have accurate definitions.
◦Quiz each other on the words and definitions.
For Next Time…◦Continue to review vocabulary cards over the weekend.
◦Each lab group needs to bring in one flashlight for Monday’s mini lab.
◦ http://www.cellsalive.com/cells/3dcell.htm (Practice labeling different types of cells.)
CELL STRUCTURE(CONTINUED)
7th Grade
Do Now…
◦Name the 3 parts of the cell theory.
Objectives
Students will…◦Identify names and functions of each part of the cell
◦Explain how important a nucleus is in a cell.◦Compare tissues, organs and organ systems. ◦Model cytoplasm using gelatin
Cellular Organization
◦http://www.cellsalive.com/cells/cell_model.htm (Eukaryotic)
◦Label plant/animal cell worksheet. ◦Eukaryotic cells have membrane-bound structure and are found in protists, fungi, plants and animals.
◦Crash Course Animal Cells◦Crash Course Plant Cells
Mini Lab-Modeling Cytoplasm
◦Purpose: Model Cytoplasm using gelatin.
◦Lab procedures/directions◦Complete lab worksheet.
For Next Time…
◦Finish labeling plant/animal cell worksheets if needed. Use textbook or cellsalive.com to help.
BILL NYE: CELLS7th Grade
Do Now Together…
◦How are plant animal cells alike and different?
Many-Celled Organisms◦Cells in many-celled organisms do not work alone. They each carries on its own life functions while depending on some way on other cells in the organism.
◦Many one-celled organisms perform all life functions on their own.
◦Tissue is a group of similar cells that work together to do one job. Each cell in a tissue does it part to keep the organ alive.
◦Organ (made up of tissue) is a structure made of 2 or more different types of tissues that work together. (muscle/blood tissue)
◦Organ system is a group of organs working together to perform a certain function. (heart, arteries, veins and capillaries)
Objectives
Students will…◦Watch a Bill Nye video to review the major components of cells
Bill Nye: Cells
◦Take a few minutes and write down 3 things that you already know about heat on your worksheet.
◦As you are watching the video, write down 3 content related questions you might have about the topics discussed.
◦Finally, write down the 3 main points of the video in the triangle on the back of the paper.
For Next Time…
◦No Homework! ◦Happy Thanksgiving ◦Random Acts of Kindness