In C₄ plants, the primary acceptor of CO₂ is phosphoenol pyruvate. It combines with carbon dioxide in the presence of PEP carboxylase to form oxalo acetic acid in mesophyll cells.

Correct Option: B

In C₄ plants, the primary acceptor of CO₂ is phosphoenol pyruvate. It combines with carbon dioxide in the presence of PEP carboxylase to form oxalo acetic acid in mesophyll cells.

The primary acceptor of CO₂ in C₄ plants is phosphoenol pyruvate or PEP. In mesophyll cells PEP combines with CO₂ and converted into a 4 carbon compound oxaloacetic acid by PEP carboxylase. In C₃ plants, ribulose 1, 5–diphosphate is the primary acceptor of CO₂.

Correct Option: A

The primary acceptor of CO₂ in C₄ plants is phosphoenol pyruvate or PEP. In mesophyll cells PEP combines with CO₂ and converted into a 4 carbon compound oxaloacetic acid by PEP carboxylase. In C₃ plants, ribulose 1, 5–diphosphate is the primary acceptor of CO₂.

Dark reaction occurs in the stroma or matrix of chloroplasts. It is independent of light but depends on the products of light reaction (ATP and NADPH–assimilatory process).

Correct Option: C

Dark reaction occurs in the stroma or matrix of chloroplasts. It is independent of light but depends on the products of light reaction (ATP and NADPH–assimilatory process).

In 1954-55 Calvin traced the pathway of carbon fixation using radioactive isotope method and discovered the Calvin cycle.

Correct Option: C

In 1954-55 Calvin traced the pathway of carbon fixation using radioactive isotope method and discovered the Calvin cycle.

According to law of limiting factors given by Blackman, when a process depends upon a number of factors which are separate, the rate of the process is limited by the pace of the slowest factor. Rate of yield is dependent on light as photosynthesis is dependent on light. During monsoon, the intensity light is less and so rate of photosynthesis and hence yield is reduced.

Correct Option: B

According to law of limiting factors given by Blackman, when a process depends upon a number of factors which are separate, the rate of the process is limited by the pace of the slowest factor. Rate of yield is dependent on light as photosynthesis is dependent on light. During monsoon, the intensity light is less and so rate of photosynthesis and hence yield is reduced.