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multiple select question select all that apply select the products of t…

Question

multiple select question select all that apply select the products of the light-independent reactions that cycle back and are available for the light-dependent reactions. atp synthase adp oxygen glucose nadp+

Explanation:

Brief Explanations
  1. Recall the light - independent (Calvin cycle) and light - dependent reactions in photosynthesis:
  • In the light - dependent reactions, ATP and NADPH are produced using light energy, and ADP, \(P_i\) (inorganic phosphate), and \(NADP^+\) are consumed.
  • In the light - independent reactions (Calvin cycle), ATP is hydrolyzed to ADP and \(P_i\) (so ADP is a product of ATP hydrolysis in the Calvin cycle), and NADPH is oxidized to \(NADP^+\) (so \(NADP^+\) is a product of NADPH oxidation in the Calvin cycle). These ADP and \(NADP^+\) then cycle back to be used in the light - dependent reactions.
  • ATP synthase is an enzyme, not a product of the light - independent reactions that cycles back. Oxygen is a product of the light - dependent reactions (from water splitting), not the light - independent reactions. Glucose is a product of the light - independent reactions but is used for energy storage or other metabolic processes, not cycled back to the light - dependent reactions.
  1. Analyze each option:
  • ATP synthase: It is an enzyme involved in ATP production in the light - dependent reactions, not a product of light - independent reactions that cycles back. Eliminate this option.
  • ADP: In the light - independent reactions (Calvin cycle), ATP is used (hydrolyzed to ADP and \(P_i\)). ADP then cycles back to the light - dependent reactions to be phosphorylated back to ATP. This option is correct.
  • Oxygen: Oxygen is produced in the light - dependent reactions (from the splitting of water), not the light - independent reactions. Eliminate this option.
  • Glucose: Glucose is a product of the light - independent reactions but is not cycled back to the light - dependent reactions. It is used for other purposes like respiration or storage. Eliminate this option.
  • \(NADP^+\): In the light - independent reactions, NADPH is oxidized (loses electrons) to \(NADP^+\). \(NADP^+\) then cycles back to the light - dependent reactions to be reduced back to NADPH. This option is correct.

Answer:

B. ADP, E. \(NADP^+\)