1. Cells Review

2. Which statement explains why viruses are exceptions to the cell theory? 1.They contain genetic material. 2.They are not made up of cells. 3.They reproduce by mitosis. 4.They are surrounded by a protein coat.

3. Give the cell organelle that performs each function. 1.Transport materials throughout the cell = 2.Protein production = 3.Digests food = 4.Regulates what enters and leaves the cell = 5.Produces energy = Endoplasmic reticulum ribosomes lysosomes cell membrane mitochondria

4. 6. Controls all cell activities = 7. Holds cell organelles = 8. Site of photosynthesis = 9. Used in cell division = 10. Gives plant cell shape and support = 11. Destroys old cell parts = 12. Packages materials = nucleus cytoplasm chloroplasts centrioles cell wall lysosomes golgi bodies

5. Identify some differences between prokaryotic and eukaryotic cells. ProkaryoticEukaryotic no nucleusnucleus no membrane bound organelles have membrane bound organelles larger smaller DNA is found in cytoplasm DNA is found inside the nucleus

6. 1.What type of transport does this picture represent? 2. Explain your answer. active transport Substances are moving from a LOW to HIGH concentration.

7. The diagram above shows the same type of molecule in area A and area B. With the passage of time, some molecules move from area A to area B. This movement is the result of the process of ____. passive transport

8. C 6 H 12 O 6 + 6O 2  6CO 2 + 6 H 2 O + X 1.What is the name of the process represented above? 2. Where does this process occur? 3. What molecule does X represent? aerobic respiration mitochondria 36 ATP

9. C 6 H 12 O 6  CO 2 + alcohol + X 1.What type of respiration is represented above? 2.What is the specific name for this process? 3. Where IN A CELL does this process occur? 4. What type of cell carries on this process? 4. What molecule does X represent? anaerobic respiration cytoplasm 2 ATP alcoholic fermentation Yeast cells

10. C 6 H 12 O 6  lactic acid + X 1.What type of respiration is represented above? 2.What is the specific name for this process? 3. Where IN A CELL does this process occur? 4. What type of cell carries on this process? 5. What molecule does X represent? anaerobic respiration cytoplasm 2 ATP lactic acid fermentation Muscle cells

11. Identify some differences between passive and active transport. Passive transportActive transport Substances move from high to low No energy neededNeeds energy Diffusion and osmosis Substances move from low to high pinocytosis and phagocytosis