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THE CELL
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CELL THEORY All living organisms are made up of cells. .
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CELL THEORY Cells are the basic unit of structure and function in an organism. Cells control birth, growth, development, reproduction and death. All life functions begin as a cellular process.
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CELL THEORY Organisms can be unicellular (one-celled) or multicellular (many-celled) Cells contain organelles ( some with membranes), which are small structures inside that do different jobs. All cells come from other cells.
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Cells can be classified into 2 groups.
Eukaryotic Cells Prokaryotic Cells
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Cells can be classified into 2 groups.
Eukaryotic Cells Have a defined nucleus. Prokaryotic Cells
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Cells can be classified into 2 groups.
Eukaryotic Cells Have a defined nucleus. Found in organisms that are made up of many cells. Prokaryotic Cells
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Cells can be classified into 2 groups.
Eukaryotic Cells Have a defined nucleus. Found in organisms that are made up of many cells. Animals Prokaryotic Cells
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Cells can be classified into 2 groups.
Eukaryotic Cells Have a defined nucleus. Found in organisms that are made up of many cells. Animals Plants Prokaryotic Cells
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Cells can be classified into 2 groups.
Eukaryotic Cells Prokaryotic Cells No structured nucleus Exist as single-celled organisms Bacteria
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Animal Cell Plant Cell
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Animal Cell Plant Cell Have students outline the organelle first. Then if they have time they can go back and color in later if they don’t have time to color in while we are working. Nucleus: Is the “brain” of the cell. It controls cells’ functions and it contains DNA.
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Cell membrane (plasma membrane) :
Allows for certain things to enter and exit the cell. It maintains cell’s homeostasis.
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Ribosomes: Make proteins for the cells
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Mitochondria: “power house of the cell”, this is where cells receive their energy.
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Cell Wall: Supports and protects plant cells.
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Chloroplast : Where plants absorb sunlight, and make food (carbohydrates).
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Let’s look at some actual plant and animal cells!
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Plant Cells
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Animal Cells
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How would you classify this cell?
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How about this cell?
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BACTERIA CELL
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Helpful or Harmful?
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The Spread
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Get ready to test your Cell IQ!!!
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Question 1: All living organisms are made up of cells. A. True B. False
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Question 1: All living organisms are made up of cells. A. True
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Question 2: According to the Cell Theory… A. All cells have cell walls
Question 2: According to the Cell Theory… A. All cells have cell walls. B. All cells arise from other cells. C. All cells have a nucleus.
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Question 2: According to the Cell Theory… B
Question 2: According to the Cell Theory… B. All cells arise from other cells.
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Question 3: You can see most cells without a microscope. A. True B
Question 3: You can see most cells without a microscope. A. True B. False
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Question 3: You can see most cells without a microscope. B. False
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Question 4: Plant cells have organelles (parts) that animal cells do not. A. True B. False
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Question 4: Plant cells have organelles (parts) that animal cells do not. A. True
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Question 5: All cells have… A. A nucleus B. A membrane C. Chloroplasts
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Question 5: All cells have… B. A membrane
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Question 6: Which of the following choices is not a part of a cell. A
Question 6: Which of the following choices is not a part of a cell? A. Lung B. Vacuole C. Chloroplast
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Question 6: Which of the following choices is not a part of a cell. A
Question 6: Which of the following choices is not a part of a cell? A. Lung
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Question 7: What type of cell has a nucleus. A. Prokaryotic cell B
Question 7: What type of cell has a nucleus? A. Prokaryotic cell B. Eukaryotic cell C. None of the above
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Question 7: What type of cell has a nucleus? B. Eukaryotic cell
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Question 8: Bacteria are considered to be prokaryotes. A. True B. False
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Question 8: Bacteria are considered to be prokaryotes. A. True
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Question 9: Some bacteria can be the cause of diseases. A. True B
Question 9: Some bacteria can be the cause of diseases. A. True B. False
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Question 9: Some bacteria can be the cause of diseases. A. True
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Question 10: You will never find a __________ in a bacteria cell. A
Question 10: You will never find a __________ in a bacteria cell. A. Cell Wall B. Cell Membrane C. Cell Nucleus
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Question 10: You will never find a __________ in a bacteria cell. C
Question 10: You will never find a __________ in a bacteria cell C. Cell Nucleus
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CELLS All living organisms are made up of cells.
Cells are the basic unit of structure and function in an organism. All cells arise from other cells. Bacteria are helpful and harmful to humans and the environment. Microscopes are important scientific tools.
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Cells Cells Cells!!!
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