Question

External source of electron not required during

Answer 1

Answer:

Cycling flow of electrons during light reactions is known as cyclic photophosphorylation. ... An external source of electrons is not required. There is no evolution of oxygen takes place because it is not connected with photolysis of water. Cyclic photophosphorylation produces ATP only.

Answer 2

External source of electron is not required during cyclic phosphorylation .

Explanation:

• in this process there is no photo lysis of the water. This means that there is no tracking of the sunlight and breaking of water into hydrogen oxygen and electrons. As a result of this there is no flow of electron. there is release of energy.

• The energy stored in the form of ATP. There is conversion of ADP into ATP due to the high energy phosphate bond.

To know more about cyclic phosphorylation,

Where does cyclic photophosphorylation take place in leaves ...

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