Question

Which of the following characteristics out of $A,B$ and $C$ arc exhibited by $C_4$ plants?

• A. only A and B, but not C
• B. only B and C, but not A
• C. only A and C, but not B
• D. all A, B and C

Answer 1

Answer: (C)

$C_4$ plants are characterised by Kranz type of anatomy i.e., chloroplast containing mesophyll cells and bundle sheath cells. The phosphoenol pyruvate in mesophyll cells combine with $C{O}_2$ in presence of PEP carboxylase and forms oxalo acetic acid. The product of photosynthesis is starch.