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THE CELL. CELL THEORY All living organisms are made up of cells. All living organisms are made up of cells.

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Presentation on theme: "THE CELL. CELL THEORY All living organisms are made up of cells. All living organisms are made up of cells."— Presentation transcript:

1 THE CELL

2 CELL THEORY All living organisms are made up of cells. All living organisms are made up of cells.

3 CELL THEORY Cells are the basic unit of structure and function in an organism. Cells are the basic unit of structure and function in an organism. Cells control birth, growth, development, reproduction and death. All life Cells control birth, growth, development, reproduction and death. All life functions begin as a cellular functions begin as a cellular process. process.

4 CELL THEORY Organisms can be unicellular (one-celled) or multicellular (many-celled) 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. Cells contain organelles ( some with membranes), which are small structures inside that do different jobs. All cells come from other cells. All cells come from other cells.

5 Cells can be classified into 2 groups. Eukaryotic Cells Prokaryotic Cells

6 Cells can be classified into 2 groups. Eukaryotic Cells Have a defined nucleus. Prokaryotic Cells

7 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

8 Cells can be classified into 2 groups. Eukaryotic Cells Have a defined nucleus. Found in organisms that are made up of many cells. Animals Animals Prokaryotic Cells

9 Cells can be classified into 2 groups. Eukaryotic Cells Have a defined nucleus. Found in organisms that are made up of many cells. Animals Animals Plants Plants Prokaryotic Cells

10 Cells can be classified into 2 groups. Eukaryotic Cells Prokaryotic Cells No structured nucleus Exist as single-celled organisms Bacteria Bacteria

11 Animal Cell Plant Cell

12 Nucleus: Is the “brain” of the cell. It controls cells’ functions and it contains DNA. Animal Cell Plant Cell Animal Cell Plant Cell

13 Cell membrane (plasma membrane) : Allows for certain things to enter and exit the cell. It maintains cell’s homeostasis.

14 Ribosomes: Make proteins for the cells

15 Mitochondria: “power house of the cell”, this is where cells receive their energy.

16 Cell Wall: Supports and protects plant cells.

17 Chloroplast : Where plants absorb sunlight, and make food (carbohydrates).

18 Let’s look at some actual plant and animal cells!

19 Plant Cells

20 Animal Cells

21 How would you classify this cell?

22 How about this cell?

23 BACTERIA CELL

24 Helpful or Harmful?

25 The Spread

26 Get ready to test your Cell IQ!!!

27 Question 1: All living organisms are made up of cells. A. True B. False

28 Question 1: All living organisms are made up of cells. A. True

29 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.

30 Question 2: According to the Cell Theory… B. All cells arise from other cells.

31 Question 3: You can see most cells without a microscope. A. True B. False

32 Question 3: You can see most cells without a microscope. B. False

33 Question 4: Plant cells have organelles (parts) that animal cells do not. A. True B. False

34 Question 4: Plant cells have organelles (parts) that animal cells do not. A. True

35 Question 5: All cells have… A. A nucleus B. A membrane C. Chloroplasts

36 Question 5: All cells have… B. A membrane

37 Question 6: Which of the following choices is not a part of a cell? A. Lung B. Vacuole C. Chloroplast

38 Question 6: Which of the following choices is not a part of a cell? A. Lung

39 Question 7: What type of cell has a nucleus? A. Prokaryotic cell B. Eukaryotic cell C. None of the above

40 Question 7: What type of cell has a nucleus? B. Eukaryotic cell

41 Question 8: Bacteria are considered to be prokaryotes. A. True B. False

42 Question 8: Bacteria are considered to be prokaryotes. A. True

43 Question 9: Some bacteria can be the cause of diseases. A. True B. False

44 Question 9: Some bacteria can be the cause of diseases. A. True

45 Question 10: You will never find a __________ in a bacteria cell. A. Cell Wall B. Cell Membrane C. Cell Nucleus

46 Question 10: You will never find a __________ in a bacteria cell. C. Cell Nucleus

47 CELLS All living organisms are made up of cells. All living organisms are made up of cells. Cells are the basic unit of structure and function in an organism. Cells are the basic unit of structure and function in an organism. All cells arise from other cells. All cells arise from other cells. Bacteria are helpful and harmful to humans and the environment. Bacteria are helpful and harmful to humans and the environment. Microscopes are important scientific tools. Microscopes are important scientific tools.

48 Cells Cells Cells!!!


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