Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Cyclic photophosphorylation occurs in the stroma lamellae of the chloroplast. Reason (R): Stroma lamellae membrane lacks both PS II and the NADP reductase enzyme. In the light of the above statements, choose the most appropriate answer from the options given below:

Step-by-step solution

Assertion (A) is correct because cyclic photophosphorylation is known to occur in the stroma lamellae. Reason (R) is correct and provides the correct explanation for the Assertion. The stroma lamellae membranes lack PS II as well as the NADP reductase enzyme. Due to the absence of these components, the excited electron from PS I cannot pass on to NADP ⁺ . Instead, it is cycled back to the PS I complex through the electron transport chain, forcing the cyclic flow of electrons which results only in the synthesis of A