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

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 11. photosynthesis in higher plants1 Mark
MCQ
$C_4$ plants are less efficient at low temperature due to
  • A
    Low $O_2$ affinity of $PEP$case
  • ✓
    Cold sensitivity of $PEP$ synthetase enzyme
  • C
    Reduced rate of decarboxylation of organic acids
  • D
    High energy requirement for $CO_2$ fixation
✓

Answer

Correct option: B.
Cold sensitivity of $PEP$ synthetase enzyme
b
$\therefore$ Optimum temp. is $30 -40°C$

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