Photosynthesis and Cell Respiration Practice Test

Question #1 Oxygen is taken into cells during ________. a) photosynthesis b) cell respiration c) both photosynthesis and cell respiration d) neither photosynthesis nor cell respiration

Question #2 Which substance carries electrons during glycolysis? a) ATP b) NADH c) FADH2 d) both FADH2 and NADH e) ATP, NADH, FADH2

Question #3 Which stage of cell respiration completes the breakdown of glucose into carbon dioxide? a) glycolysis b) Calvin cycle c) Krebs cycle d) electron transport system

Question #4 During photosynthesis, carbon is fixed (changed) from a) carbon dioxide to oxygen b) carbon dioxide to glucose c) glucose to oxygen d) glucose to carbon dioxide e) water to oxygen

Question #5 Oxygen forms ______ during cell respiration. a) glucose b) carbon dioxide c) water d) ATP e) chemical energy

Question #6 Which of the following is NOT a product of the Krebs cycle? a) carbon dioxide b) NADH c) oxygen d) ATP

Question #7 When excited electrons jump, _____ is needed to refill the photosystems. a) oxygen b) water c) glucose d) carbon dioxide e) sunlight

Question #8 Which of the following is NOT an enzyme? a) RuBP b) ATP synthase c) coenzyme A d) rubisco e) all of the above are enzymes

Question #9 Which of the following is NOT a product of glycolysis? a) carbon dioxide b) ATP c) NADH d) pyruvate e) they are all products

Question #10 The product(s) of the Calvin cycle is/are ___. a) glucose b) glucose and oxygen c) carbon dioxide and ATP d) water and glucose e) water and carbon dioxide

Question #11 Give two reasons why the Calvin cycle cannot occur without light.