1. Questions: a)What are these cells? b)What organelles are visible in this image? c) Are there chloroplasts in these cells? Why not?

2. Questions: a)What are these cells? Answer: They are onion cells b)What organelles are visible in this image? Answer: Cell wall, nucleus and cytoplasm c)Are there chloroplasts in these cells? No! d)Why not? Answer: Onion cells are part of the root which is underground and does not receive sunlight.

3. Questions: a) What are these cells? b)What is the main function of these cells? c)What are the small green organelles in these cells? d)What is the function of these organelles?

4. Questions: a)What are these cells? Answer: Elodea cells b)What is the main function of these cells? Answer: To perform photosynthesis c)What are the small green organelles in these cells? Answer: Choloplasts d)What is the function of these organelles? Answer: To convert light energy form the sun into chemical energy (sugar)

5. Questions: a)Are there mitochondria in these cells? b)Do these cells have a cell membrane? c)Do these cells have vacuoles? d) Would you find these cells in a root tip?

6. Questions: a)Are there mitochondria in these cells? Answer: Yes! All cells use energy so all cells have mitochondria b)Do these cells have a cell membrane? Answer: Yes! Every cell has a cell membrane c)Do these cells have vacuoles? Answer: Yes! All cells have vacuoles to store water and other liquids. d) Would you find these cells in a root tip?

7. Questions: a) What are these cells? b)What is the function of these cells? c)What are the circled cells actively doing? d)Why are there no chloroplasts in these cells?

8. Questions: a)What are these cells? Answer: They are root tip cells b)What is the function of these cells? Answer: To multiply in order to find water and nutrients c)What are the circled cells actively doing? Answer: The cells are in the process of cell division. The nuclei are making copies of the DNA for each new cell. d)Why are there no chloroplasts in these cells?

9. Questions: a) What kind of cells are shown here? b) How do these cells work? c)What is unusual about these cells? d)How long do they live? e)What organ system are they a part of?

10. Questions: a)What kind of cells are shown to the left? Answer: Human blood cells. b)How do these cells work? Answer: They carry oxygen and food to every cell through blood vessels. They also take away carbon dioxide and wastes from every cell. c)What is unusual about these cells? Answer: Human red blood cells do not have a nucleus. d)How long do they live? e)What organ system are they a part of?

11. Questions: a)What kind of cells are shown in the bottom image? Answer: Sickle Cells b)Why is this type of cell a problem? Answer: Sickle cells do not have the round shape of normal blood cells so they have a hard time flowing through the blood vessels. Their shape (sickle) does not fit their function (to flow easily in blood vessels)

12. Questions: a) What is this cell? b) What are the key parts of this cell? c)What direction does the impulse move?

13. Questions: a)What is this cell? Answer: A nerve or neuron cell. b)What are the key parts of this cell? Answer: The three main parts are the dendrites, cell body and axon. c)What direction does the impulse move? Answer; The impulse travels from the dendrite through the cell body and leaves the cell through the axon. d)Do they reproduce (undergo cell division)?

14. Questions: a)Do nerve cells reproduce (undergo cell division)? b) How long do they live? c) What other kinds of cells would nerve cells likely work with?

15. Questions: a)Do nerve cells reproduce (undergo cell division)? Answer: No! Your body does not replace dead or damaged never cells. b)How long do they live? Answer: Unless they are damaged or die, your nerve cells live as long as you do. c)What other kinds of cells would nerve cells likely work with? Answer: Muscle cells

16. Questions: a) What are these cells? b) How do these cells work? c) What are the “stripes” in the cell called? c) Do these cells reproduce?

17. Questions: a)What are these cells? Answer: Muscle cells b)b) How do these cells work? Answer: They expand and contract. c)What are the “stripes” in the cell called? Answer: The stripes are called striations. d)Do muscle cells reproduce? Answer: Yes (except heart muscles)

18. Questions: a)There are 3 kinds of muscle cells. What are they? Answer: 1) skeletal or voluntary; 2) smooth or involuntary; 3) heart or cardiac b)Which organelle would you find in great numbers in muscle cells? Why? Answer: Mitochondria because muscle cells use a lot of energy. Mitochondria are the organelles responsible for releasing energy.

19. Questions: a)What part of the plant are these cells from? b)What is the function of these cells?

20. Questions: a)What part of the plant are these cells from? Answers: These cells are from a leaf b)What is the function of these cells? Answer: These job of these cells is to capture the energy from sunlight and convert it into chemical energy or sugar.

21. Questions: a)What is the name and purpose of each of the main layers in this leaf? 1. 2. 3.

22. Questions: a) What is the name and purpose of each of the main layers in this leaf? Answer: 1. Upper/Lower Epidermis: These cells protect the leaf 2. Palisades: Cells where most of the photosynthesis takes place. 3.Spongy: Layer where most of the gases (oxygen and carbon dioxide) are exchanged 1. Upper Epidermis 2. Palisades Layer 3. Spongy Layer Lower Epidermis

23. Tissue: Groups of Similar Cells Working Together (Cross Section of a Privet Leaf) Upper Epidermis Palisades Layer Spongy Layer

24. Nerve Cell (Animal)Muscle Cell (Animal) relaxes contracts Striations

25. Red Blood Cell (Animal) Cheek Cell Red Blood Cell

26. Red Blood Cell (Animal) Cheek Cell Red Blood CellElodea Cells (Plant)Root Tip Cells (Plant) Cholorplasts Cork Cells (Plant)Onion Cells (Plant) Cell WallsCellslWallNucleus nucleus

27. Nerve Cell Cheek Cell Red Blood CellRoot Tip Cells (Plant)

28. Nerve Cell Cheek Cell (Animal) Red Blood Cell (Animal) Cheek Cell Red Blood CellRoot Tip Cells (Plant) Nucleus Frog Blood Cells (Animal) Cross Section of an Artery (Animal)