Given below are assertion and reason. Point out if both are true with the reason being a correct explanation (A), both true but the reason is not correct explanation (B), the assertion is true but the reason is wrong (C) and both are wrong (D).
Assertion. C4 photosynthetic pathway is more efficient than C3 pathway.
Reason. Photorespiration is suppressed in C4 plants.
Given below are assertion and reason. Point out if both are true with the reason being a correct explanation (A), both true but the reason is not correct explanation (B), the assertion is true but the reason is wrong (C) and both are wrong (D).
Reason. Photorespiration is suppressed in C4 plants.
The correct option is D A
C4 plants can absorb CO2 even in a much low CO2 concentration while the C3 plants fail to avail it. C4 cycle is much more efficient photosynthetically.
Primary Carboxylation of phosphoenolpyruvate (PEP) to form oxaloacetic acid (a 4- carbon compound) in presence of enzyme phosphoenolpyruvate carboxylase (PEP carboxylase).
Photorespiration: It is inhibition of photosynthesis by high O2 level. It was termed as Warburg effect. However, the inhibition was observed mostly in C3 plants. The C4 plants were hardly affected by varying O2 concentrations.’
Hence, the correct answer is 'A'.
C4 plants can absorb CO2 even in a much low CO2 concentration while the C3 plants fail to avail it. C4 cycle is much more efficient photosynthetically.
Primary Carboxylation of phosphoenolpyruvate (PEP) to form oxaloacetic acid (a 4- carbon compound) in presence of enzyme phosphoenolpyruvate carboxylase (PEP carboxylase).
Photorespiration: It is inhibition of photosynthesis by high O2 level. It was termed as Warburg effect. However, the inhibition was observed mostly in C3 plants. The C4 plants were hardly affected by varying O2 concentrations.’
Hence, the correct answer is 'A'.
