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During photosynthesis A - VCE - SSCE Biology - Question 12 - 2020 - Paper 1
Question 12
During photosynthesis A. ATP and NADH created in the light-independent stage are transported to the chloroplasts' thylakoid membrane. B. ADP and NADH are used in t... show full transcript
Worked Solution & Example Answer:During photosynthesis A - VCE - SSCE Biology - Question 12 - 2020 - Paper 1
Step 1
Step 2
B. ADP and NADH are used in the electron transport chain after being created in the light-dependent stage.
Answer
This statement is misleading as NADH is not typically produced in the light-dependent reactions. Instead, NADPH is generated in those reactions and is then used to drive the light-independent reactions.
Step 3
C. ATP and NADPH are created in the grana of the chloroplasts and are used in the light-independent stage.
Answer
This statement is partially correct because ATP and NADPH are indeed generated in the light-dependent reactions that occur in the thylakoid membranes (which are found in the grana) and are then utilized in the light-independent reactions.
Step 4
D. ADP and NADPH are created during the Krebs cycle and carried to the stroma of the chloroplasts.
Answer
This statement is incorrect. NADPH is generated during the light-dependent reactions of photosynthesis, while ADP is a product of cellular respiration. The Krebs cycle occurs in cellular respiration, not photosynthesis.