Non-Cyclic Photophosphorylation & Z Scheme — NEET Biology
📚 Practice ConceptATP is synthesised by cells (in mitochondria and chloroplasts) is named phosphorylation. Photophosphorylation is the synthesis of ATP from ADP and inorganic phosphate in the presence of light. When the two photosystems work in a series, first PS II and then the PS I, a process called non-cyclic photo-phosphorylation occurs. The two photosystems are connected through an electron transport chain, as seen earlier – in the Z scheme. Both ATP and NADPH + H+ are synthesised by this kind of electron flow.
Assertion (A): Non-cyclic and cyclic photophosphorylation produce different products. Reason (R): Cyclic photophosphorylation synthesises both ATP and NADPH + H+ while non-cyclic flow produces only ATP.
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