During non-cyclic photophosphorylation, electrons are continuously lost from the reaction centre of PS II. Which source is used to replace these electrons?

Question

During non-cyclic photophosphorylation, electrons are continuously lost from the reaction centre of PS II. Which source is used to replace these electrons? (A) Sunlight (B) O2 (C) H2O (D) CO2

Tardigrade Admin · Accepted Answer

Non-cydic photophosphorylation is the normal process of photophosphorylation in which the electron expelled by the excited photocentre does not return to it. Non- cydic photophosphorylation is carried out in collaboration of both photosystems I and II. Electron released during photolysis of H2O is picked up by photocentre of PS II called P680. The same is extruded out when the photocentre absorbs light energy (hv). Electrons released during the photolysis of water are immediately accepted by oxidised reaction centre of PS II (i.e., P680) through an unknown substance Z.

Q. During non-cyclic photophosphorylation, electrons are continuously lost from the reaction centre of $PS II$ . Which source is used to replace these electrons?

Sunlight

$O_{2}$

$H_{2} O$

$C O_{2}$

Q. During non-cyclic photophosphorylation, electrons are continuously lost from the reaction centre of PSII. Which source is used to replace these electrons?

Sunlight

O2​

H2​O

CO2​

Q. During non-cyclic photophosphorylation, electrons are continuously lost from the reaction centre of $PS II$ . Which source is used to replace these electrons?

$O_{2}$

$H_{2} O$

$C O_{2}$