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STD 11 - 11. photosynthesis in higher plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 11. photosynthesis in higher plants1 Mark
MCQ
Cyclic photophosphorylation results only in the
  • ✓
    Formation of $ATP$
  • B
    Formation of $N A D P^{+i+H^{\prime \prime}}$ and $ATP$
  • C
    Formation of $N A D^{+i+H^{r \cdots}}$
  • D
    Formation of $A D P+P i$
✓

Answer

Correct option: A.
Formation of $ATP$
a
During the cyclic phosphorylation, the electrons does not pass to the $N A D P^{+i i}$ but cycled back to PS-I through electron transport chain. This cyclic flow hence, results only in the synthesis of $ATP$ but no of $NADPH +H^{+i \bar{i}}$. Cyclic photophosphorylation occurs when only light of wavelength beyond $700 \;nm$ is available for excitation

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