AP BIOLOGY

Detailed explanation-1: -Assertion : In case of cyclic photophosphorylation, there is no production of NADPH and oxygen. Reason : As the electron flows cyclically and NADPH is present in sufficient amount in the cell, hence, cyclic photophosphorylation occurs to provide ATP to power other activities in chloroplast. No worries!

Detailed explanation-2: -Cyclic photophosphorylation This transport chain produces a proton-motive force, pumping H+ ions across the membrane and producing a concentration gradient that can be used to power ATP synthase during chemiosmosis. This pathway is known as cyclic photophosphorylation, and it produces neither O2 nor NADPH.

Detailed explanation-3: -Cyclic photophosphorylation generates two ATP molecules.

Detailed explanation-4: -Cyclic photophosphorylation produces ATP only. It does not involve the formation of NADPH.

Detailed explanation-5: -The most primitive living photosynthetic organisms are intolerant of oxygen. They conduct cyclic photophosphorylation, a form of photosynthesis that does not generate oxygen.