Photosynthesis Quiz .edu
Photosynthesis Quiz
1. What supplies the electrons to photosystem II?
a. Water
b. Oxygen
c. Electron transport from photosystem I
d. NADPH
e. ATP
2. What supplies the electrons to photosystem I?
a. Water
b. Oxygen
c. Electron transport from photosystem II
d. NADPH
e. ATP
3. What supplies the electrons to the Calvin cycle?
a. Water
b. Oxygen
c. Electron transport from photosystem I
d. NADPH
e. ATP
4. Light reactions occur in the ______ while the calvin cycle occurs in the _______.
a. C4 plants, CAM plants
b. CAM plants, C4 plants
c. Stroma, thylacoid membrane
d. Thylacoid membrane, stroma
e. Stomata, thylacoid membrane
f. Thylacoid membrane, stomata
5. Stomata are the sites of the
a. Light reactions
b. Calvin Cycle
c. Gas exchange
d. Electron transport chain
e. Carbon fixation
6. Carbon dioxide is used in the
a. Light reactions
b. Calvin Cycle
c. Gas exchange
d. Electron transport chain
e. Oxidative Phosphorylation
7. Sunlight is used in the
a. Light reactions
b. Calvin Cycle
c. Gas exchange
d. Electron transport chain
e. Carbon fixation
8. Which of the following is not a product of light reactions?
a. Oxygen
b. ATP
c. NADPH
d. Water
9. Which of the following is not a product of the Calvin Cycle?
a. Carbon dioxide
b. G3P
c. ADP
d. NADP+
10. Which of the following is able to build fuel molecules without use of light energy (using energy sources such as H2S, NH3, or Fe+2)?
a. Heterotrophs
b. Chemoautotrophs
c. Photoautotrophs
d. Primary consumers
e. Secondary consumers
11. Is photosynthesis catabolic or anabolic?
a. Catabolic
b. Anabolic
12. Which of the following is not a photosynthetic pigment found in plants?
a. Chlorophyll a
b. Chlorophyll b
c. Chlorophyll c
d. Carotenoids
13. How did Van Niel track atom movements of photosynthesis?
a. Isotope labeling and Mass spectroscopy
b. Isotope labeling and PCR
c. Fluorescent labeling and Mass spectroscopy
d. Florescent labeling and PCR
14. Most plants don’t absorb ________ light.
a. Red
b. Orange
c. Green
d. Blue
e. Violet
15. Which of the following allows chlorophyll to absorb light energy (photons)?
a. Porphyrin ring
b. Hydrocarbon tail
c. Reaction center in photosystem
d. A and B
e. A and C
16. What is the purpose of cyclic electron flow?
a. Produce more ATP
b. Produce more NADPH
c. Produce cytochromes
d. Supply more electrons to the transport chain
e. Capture more light energy
17. Photosystem I absorbs maximally at
a. 680 nm
b. 700nm
18. Photosystem II absorbs maximally at
a. 680 nm
b. 700nm
19. The primary electron acceptor is a __________ molecule.
a. Water
b. Plastocyanin
c. Oxygen
d. Quinone
e. Ferredoxin
20. What sugar is produced by the Calvin Cycle?
a. Glucose
b. Oxaloacetate
c. G3P
d. RuBP
e. Rubisco
21. What is the enzyme used in C3 Calvin Cycle?
a. RuBP
b. Rubisco
c. PEP carboxylase
d. Malate
e. NADPH
22. What is the benefit of the C4 adaptation?
a. Not an adaptation; C3 and CAM are the adapted Calvin Cycles
b. Temporal separation of carbon fixation and Calvin Cycle
c. Increase transpiration
d. Increase photorespiration
e. Decrease photorespiration
23. What is the benefit of the CAM adaptation?
a. Not an adaptation; C3 and C4 are the adapted Calvin Cycles
b. Temporal separation of carbon fixation and Calvin Cycle
c. Spatial separation of carbon fixation and Calvin Cycle
d. Increase transpiration
e. Increase photorespiration
24. What limits light reactions?
a. Amount of light
b. Amount of ATP
c. Amount of NADPH
d. Amount of carbon dioxide
e. Amount of glucose
25. What limits the Calvin Cycle?
a. Amount of light
b. Amount of ADP
c. Amount of NADP+
d. Amount of carbon dioxide
e. Amount of glucose
Answers
1. A
2. C
3. D
4. D
5. C
6. B
7. A
8. D
9. A
10. B
11. B
12. C
13. A
14. C
15. A
16. A
17. B
18. A
19. D
20. C
21. B
22. E
23. B
24. A
25. D
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