1. Which gas has the greatest effect on photosynthesis. A. oxygen B
Which gas has the greatest effect on photosynthesis? A. oxygen B. Methane C. Ethylene D. carbon dioxide D

2. Which is a difference between anaerobic respiration and aerobic respiration? A. Anaerobic respiration requires oxygen to occur. B. Anaerobic respiration only occurs outside of the cell. C. Anaerobic respiration does not require oxygen to occur. D. Anaerobic respiration occurs only at the cellular level. C

3. Which of these molecules completes the process of cellular respiration
Which of these molecules completes the process of cellular respiration? glucose → glycolysis (pyruvic acid) → ______ + water + _______ A. CO2 , ATP B. O2 , NADH C. H2O , CO2 D. ADP, O2 A

4. Why do leaf cells contain many choloroplasts. A
Why do leaf cells contain many choloroplasts? A. Cells located in a leaf need more sunlight for respiration. B. Cells located in a leaf need more sunlight for transpiration. C. Cells located in a leaf need more sunlight for photosynthesis. D. Cells located in a leaf need more sunlight for protein synthesis. C

5. Which process produces the highest amount of energy. A
Which process produces the highest amount of energy? A. aerobic respiration B. anaerobic respiration C. Photosynthesis D. protein synthesis A

6. Which affects the rate of photosynthesis the least. A. water B
Which affects the rate of photosynthesis the least? A. water B. oxygen gas C. light energy D. carbon dioxide gas B

7. Which has the most impact on the rate of cellular respiration. A
Which has the most impact on the rate of cellular respiration? A. water B. oxygen gas C. light energy D. carbon dioxide gas B

8. A cell makes 36 molecules of ATP from one molecule of glucose
A cell makes 36 molecules of ATP from one molecule of glucose. Which type of reaction is this cell undergoing? A. aerobic respiration B. anaerobic respiration C. alcoholic fermentation D. lactic acid fermentation A

9. An athlete is running a race when suddenly his legs begin to cramp
An athlete is running a race when suddenly his legs begin to cramp. Which process is most likely responsible for the athlete’s leg cramps? A. glycolysis B. cellular respiration C. alcoholic fermentation D. lactic acid fermentation D

10. How do photosynthesis and cellular respiration differ. A
How do photosynthesis and cellular respiration differ? A. Photosynthesis uses food and cellular respiration produces food. B. Photosynthesis gives off oxygen and cellular respiration uses oxygen. C. Photosynthesis uses oxygen and cellular respiration uses carbon dioxide. D. Photosynthesis breaks down carbohydrates and cellular respiration produces carbohydrates. B