Answer :
Final answer:
The two G3P molecules from the Calvin cycle are used to produce carbohydrate molecules like glucose and to regenerate the necessary RuBP molecule for the cycle to continue. Therefore, the correct option is 3) To regenerate RuBP.
Explanation:
The purpose of the two G3P (Glyceraldehyde-3-Phosphate) molecules that leave the Calvin cycle is twofold. First, one G3P molecule exits the Calvin cycle to contribute to the production of carbohydrate molecules such as glucose and sucrose, which are essential for the plant's energy storage and structural components. This process happens because a glucose molecule requires six carbon atoms, hence six turns of the Calvin cycle are necessary to produce one glucose molecule.
Secondly, the remaining G3P molecules play a crucial role in the regeneration of RuBP (Ribulose Bisphosphate). This is a necessary step as RuBP is the molecule that reacts with carbon dioxide to start the cycle over again. During the regeneration process, ATP is utilized, depicting the connection between the light-dependent reactions of photosynthesis and the Calvin cycle.
Answer:
What did you include in your response?
(1) Two G3P molecules leave the cycle.
(2) The G3P molecules are used to make organic molecules like glucose and sucrose.
Answer 1
Explanation: