The chloroplast is the organelle responsible for photosynthesis in eukaryotic cells - VCE - SSCE Biology - Question 6 - 2006 - Paper 1
Question 6
The chloroplast is the organelle responsible for photosynthesis in eukaryotic cells.
In chloroplasts
A. the light independent reactions require water as the initial... show full transcript
Worked Solution & Example Answer:The chloroplast is the organelle responsible for photosynthesis in eukaryotic cells - VCE - SSCE Biology - Question 6 - 2006 - Paper 1
Step 1
A. the light independent reactions require water as the initial reactant.
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Answer
This statement is incorrect. The light independent reactions, also known as the Calvin cycle, do not directly use water as a reactant; they utilize carbon dioxide and ATP/NADPH produced from the light reactions.
Step 2
B. the light independent reactions occur in the inner membrane area.
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Answer
This statement is also incorrect. The light independent reactions take place in the stroma of the chloroplast, not in the inner membrane area.
Step 3
C. the final product of the light reaction is glucose.
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Answer
This statement is incorrect as well. The light reactions produce ATP and NADPH, which are then used in the light independent reactions (Calvin cycle) to form glucose.
Step 4
D. the light reactions occur in the grana.
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Answer
This statement is correct. The light reactions of photosynthesis occur in the thylakoid membranes, which are stacked in structures called grana.
