Question

The C4 plants usually have the following features -
A. The first stable product in the system is a 4-carbon compound
B. There are two CO2 acceptors, viz., PEP and RUBP
C. Oxygen does not have any inhibitory effect on the process.
D. RUBP carboxylase is present in the mesophyll.
Choose the correct answer from the options given below:

• A. A, B and D only
• B. A, B, and C only
• C. B, C, and D only
• D. A, C, and D only

Hint:

Remember that in C4 plants, the enzymes are spatially separated: PEP carboxylase is in the mesophyll cells, whereas RuBisCO is located in the bundle sheath cells. This spatial separation is the key to preventing photorespiration.

Answer 1

The Correct Option is B