9. Photosynthesis

The reactions of the Calvin cycle are not directly dependent on light, but they usually do not occur at night. Why?

The Calvin cycle occurs in the __________.

What is the role of NADP⁺ in photosynthesis?

Of the following, which occurs during the Calvin cycle?

Which of the following occurs during the Calvin cycle?

Rubisco is __________.

In the Calvin cycle, CO₂ is combined with __________.

Glyceraldehyde-3-phosphate (G3P) is produced in the stroma of chloroplasts. Which of the following statements is most accurate regarding this compound?

Which of the following are produced by reactions that take place in the thylakoids and consumed by reactions in the stroma? a. CO2 and H2O b. ATP and NADPH c. ATP, NADPH, and CO2 d. ATP, NADPH, and O2

Which of the following occurs during the Calvin cycle? (A) carbon fixation (B) reduction of NADP+ (C) release of oxygen (D) generation of CO2

Which of the following does not occur during the Calvin cycle? a. carbon fixation b. oxidation of NADPH c. release of oxygen d. regeneration of the CO2 acceptor

The reactions of the Calvin cycle are not directly dependent on light, but they usually do not occur at night. Why? (Explain your answer.) a. It is often too cold at night for these reactions to take place. b. Carbon dioxide concentrations decrease at night. c. The Calvin cycle depends on products of the light reactions. d. Plants usually close their stomata at night.

Describe the three phases of the Calvin cycle and how the products of the light-capturing reactions participate in this process.

Which of the following does not occur during the Calvin cycle? a. carbon fixation b. oxidation of NADPH c. consumption of ATP d. release of oxygen

Describe the three phases of the Calvin cycle and how the products of the light-capturing reactions participate in this process.

Apply what you know of the relationship between the light-capturing reactions and the Calvin cycle to calculate the number of photons used to produce a new G3P and regenerate RuBP. (Assume 1 ATP is produced for each pair of electrons used to form NADPH.)

To synthesize one glucose molecule, the Calvin cycle uses _________ molecules of CO2, _________ molecules of ATP, and _________ molecules of NADPH.