FORESTRY
PLANT PHYSIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
C4 plants
|
|
|
C2 plants
|
|
|
C3 and C4 plants
|
|
|
C3 plants
|
Detailed explanation-1: -C4 plants. The correct option is B: Explanation of the correct answer: Phosphoenolpyruvate (PEP) is the 3-Carbon compound and acts as the primary CO2 acceptor in the mesophyll cells of C4 plants, leading to the formation of OAA (Oxaloacetic acid), C4 acid.
Detailed explanation-2: -The carbon dioxide acceptor in CAM plants is Phosphoenol pyruvic acid (PEP) during the night and Ribulose bisphosphate is carbon dioxide acceptor during day time. The first stable product in case of CAM plants is Oxalo acetic acid (OAA).
Detailed explanation-3: -The C4 plants are called so because the first stable product of this process are the four carbon atom containing organic acids like oxalo-acetic acid and malic acid. The initial acceptor of carbon dioxide is phosphoenol pyruvic acid (PEP) and the initial carboxylating enzyme is PEP carboxylase.