How Much Do You Know About Photosynthesis? Quiz
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Photosynthesis quiz
- 1.Explain (specifically) why the dark reactions of photosynthesis are cyclic.
- 2.
- 3.
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The specific energy source for the reaction ADP + phosphate ATP by the enzyme ATP synthetase in thylakoid membranes is- A.
Movement of electrons between photosystem II and photosystem I
- B.
Splitting of a water molecule
- C.
Creation of a molecule of NADPH
- D.
Absorption of photons by chloroplast pigments
- E.
Higher concentration of H+ inside versus outside the thylakoid membranes
- 4.Which would you expect to increase the rate of photosynthesis?
- A.
Increasing the carbon dioxide concentration
- B.
Decreasing the intensity of exposure to light
- C.
Increasing the oxygen concentration
- D.
Decreasing the duration of exposure to light
- 5.If you see bubbles coming off of underwater plants, what are you seeing?
- A.
Oxygen bubbles from reactions in photosystem I
- B.
Oxygen bubbles from reactions in photosystem II
- C.
Carbon dioxide bubbles from reactions in photosystem I
- D.
Carbon dioxide bubbles from reactions in photosystem II
- 6.Why are electron transport systems important in photosynthesis?
- A.
They create NADP+ from NADPH for later use in syntheses
- B.
They provide the energy needed to split a molecule of carbon dioxide
- C.
They convert ATP into ADP which provides a store of energy
- D.
They convert ADP into ATP which provides a store of energy
- 7.Energy is released from ATP when
- A.
A phosphate group is added.
- B.
Adenine bonds to ribose.
- C.
ATP is exposed to sunlight.
- D.
A phosphate group is removed.
- 8.In the Calvin cycle
- A.
Carbon dioxide is used to create organic molecules
- B.
Energy in the form of ATP is used
- C.
NADPH is required
- D.
Glucose is formed
- E.
All of these
- 9.Where do the light-dependent reactions take place?
- A.
In the stroma
- B.
Outside the chloroplasts
- C.
In the thylakoid membranes
- D.
Only in chlorophyll molecules
- 10.In the light-dependent reactions
- A.
Carbon dioxide is fixed
- B.
ATP and NADPH form
- C.
Carbon dioxide accepts electrons
- D.
Glucose molecules form
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