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Biology

Review Questions

BiologyReview Questions
4.

Which of the following components is not used by both plants and cyanobacteria to carry out photosynthesis?

  1. chloroplasts
  2. chlorophyll
  3. carbon dioxide
  4. water
5.

What two main products result from photosynthesis?

  1. oxygen and carbon dioxide
  2. chlorophyll and oxygen
  3. sugars/carbohydrates and oxygen
  4. sugars/carbohydrates and carbon dioxide
6.

In which compartment of the plant cell do the light-independent reactions of photosynthesis take place?

  1. thylakoid
  2. stroma
  3. outer membrane
  4. mesophyll
7.

Which statement about thylakoids in eukaryotes is not correct?

  1. Thylakoids are assembled into stacks.
  2. Thylakoids exist as a maze of folded membranes.
  3. The space surrounding thylakoids is called stroma.
  4. Thylakoids contain chlorophyll.
8.

Which of the following structures is not a component of a photosystem?

  1. ATP synthase
  2. antenna molecule
  3. reaction center
  4. primary electron acceptor
9.

How many photons does it take to fully reduce one molecule of NADP+ to NADPH?

  1. 1
  2. 2
  3. 4
  4. 8
10.

Which complex is not involved in the establishment of conditions for ATP synthesis?

  1. photosystem I
  2. ATP synthase
  3. photosystem II
  4. cytochrome complex
11.

From which component of the light-dependent reactions does NADPH form most directly?

  1. photosystem II
  2. photosystem I
  3. cytochrome complex
  4. ATP synthase
12.

Which molecule must enter the Calvin cycle continually for the light-independent reactions to take place?

  1. RuBisCO
  2. RuBP
  3. 3-PGA
  4. CO2
13.

Which order of molecular conversions is correct for the Calvin cycle?

  1. RuBP + G3P → 3-PGA → sugar RuBP + G3P → 3-PGA → sugar
  2. RuBisCO →  CO 2  → RuBP → G3P RuBisCO →  CO 2  → RuBP → G3P
  3. RuBP + CO 2  → [ RuBisCO ] 3-PGA → G3P RuBP + CO 2  → [ RuBisCO ] 3-PGA → G3P
  4. CO 2  → 3-PGA → RuBP → G3P CO 2  → 3-PGA → RuBP → G3P
14.

Where in eukaryotic cells does the Calvin cycle take place?

  1. thylakoid membrane
  2. thylakoid lumen
  3. chloroplast stroma
  4. granum
15.

Which statement correctly describes carbon fixation?

  1. the conversion of CO2 into an organic compound
  2. the use of RuBisCO to form 3-PGA
  3. the production of carbohydrate molecules from G3P
  4. the formation of RuBP from G3P molecules
  5. the use of ATP and NADPH to reduce CO2
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