Q. $C_{4}$ plants are less efficient at low temperature due to

1729 223 Photosynthesis in Higher Plants Report Error

A

Low $O_{2}$ affinity of PEPcase

B

Cold sensitivity of PEP synthetase enzyme

C

Reduced rate of decarboxylation of organic acids

D

High energy requirement for $C O_{2}$ fixation

Solution:

$∴$ Optimum temp. is $30 - 4 0^{\circ} C$