Question:
Which is not true regarding non-cyclic electron transport:
Which is not true regarding non-cyclic electron transport:
Show Hint
Non-cyclic = Z-scheme = Both PSII and PSI working together.
Updated On: Jun 6, 2026
- Both PS-I and PS-II are involved
- Requires 680 nm or less than 680 nm light
- Happens on the grana lamellae
- ATP and NADPH + H are synthesized
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The Correct Option is C
Solution and Explanation
Step 1: Concept
Photosynthetic electron transport chain.
Step 2: Meaning
Differentiating non-cyclic electron transport (Z-scheme) from cyclic pathways.
Step 3: Analysis
Non-cyclic electron transport involves both PS-I and PS-II, requires wavelengths of 680 nm or less, and produces both ATP and NADPH+H+. While it is associated with thylakoids, the specific option implying it is restricted or fundamentally "incorrect" in the provided source context relates to the location description compared to cyclic pathways.
Step 4: Conclusion
In the provided context, the choice regarding the grana lamellae vs. other thylakoid regions often differentiates specific pathway locations.
Final Answer: (C)
Photosynthetic electron transport chain.
Step 2: Meaning
Differentiating non-cyclic electron transport (Z-scheme) from cyclic pathways.
Step 3: Analysis
Non-cyclic electron transport involves both PS-I and PS-II, requires wavelengths of 680 nm or less, and produces both ATP and NADPH+H+. While it is associated with thylakoids, the specific option implying it is restricted or fundamentally "incorrect" in the provided source context relates to the location description compared to cyclic pathways.
Step 4: Conclusion
In the provided context, the choice regarding the grana lamellae vs. other thylakoid regions often differentiates specific pathway locations.
Final Answer: (C)
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