Question
Which of the following characteristics is are exhibited by C4 -plants?
I. Kranz anatomy.
II. The first product of photosynthesis is oxaloacetic acid.
III. Both PEP carboxylates and ribulose biphosphate carboxylate act as carboxylating enzymes.
The correct option is
I and III, but not ll
I and II, but not III
II and III, but not I
ll and III
Solution
C.
II and III, but not I
C-4 plants have an alternative CO2 fixation pathway called Hatch and Slack cycle. These plants have Kranz anatomy in leaf, where vascular bundles are surrounded by bundle sheath.
