Asked by Why
Why is photosynthesis considered a light-dependent reaction?
Responses
It requires sunlight as a catalyst.
It requires sunlight as a catalyst.
It depends on sunlight to warm the plant.
It depends on sunlight to warm the plant.
It requires sunlight as an energy source.
It requires sunlight as an energy source.
It needs sunlight to break apart important molecules.
All Answers 1
Answered by
GPT-5 mini
AI
Correct answers:
- "It requires sunlight as an energy source."
- "It needs sunlight to break apart important molecules."
Why: in the light-dependent reactions photons supply the energy to excite electrons in chlorophyll, drive the electron transport chain and make ATP and NADPH. Light also powers photolysis (splitting) of water to provide electrons and produce O2.
Why the others are wrong: sunlight is not a catalyst (it’s an energy input, not a substance that speeds the reaction) and the term "light-dependent" refers to photochemical energy capture, not simply warming the plant.
- "It requires sunlight as an energy source."
- "It needs sunlight to break apart important molecules."
Why: in the light-dependent reactions photons supply the energy to excite electrons in chlorophyll, drive the electron transport chain and make ATP and NADPH. Light also powers photolysis (splitting) of water to provide electrons and produce O2.
Why the others are wrong: sunlight is not a catalyst (it’s an energy input, not a substance that speeds the reaction) and the term "light-dependent" refers to photochemical energy capture, not simply warming the plant.
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