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Q112
(CDS-II/2026)
Science & Technology › Basic Science (Physics, Chemistry, Biology)
Which one of the following is involved in light independent reactions of photosynthesis ?
Result
Your answer:
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·
Correct:
A
Explanation
Photosynthesis occurs in two distinct stages: light-dependent reactions and light-independent reactions. The Calvin cycle (also known as the C3 cycle) represents the light-independent stage. It takes place in the stroma of the chloroplast and does not require direct light; instead, it utilizes the ATP and NADPH produced during the light-dependent stage to fix carbon dioxide into glucose.
- Hill reaction: Refers to the light-driven split of water molecules (photolysis) and the release of oxygen, which is a light-dependent process.
- Photosystems: These are functional units (PSI and PSII) in thylakoid membranes that absorb light energy.
- Light absorption: This is the primary step of the light-dependent reactions where pigments like chlorophyll capture solar energy.
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