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DIFFERENCE BETWEEN CYCLIC AND NONCYCLIC PHOTOPHOSPHORYLATION.

 

Cyclic photophosphorylation

 

Non cyclic photophosphorylation

1.

Only the PS I is engaged

1.

Both the PS I and PS II are engaged

2.

ATP molecules are formed

2.

ATP and NADPH2 are formed.

3.

It takes place in stroma lamella and grana lamella.

3.

It takes place only in grana lamella.

4.

Photolysis of water does not occur so oxygen is not released.

4.

Photolysis of water occurs and oxygen is released.

5.

The wave length of light required is P 700.

5.

The wave length of light required is P 680.

6.

The photophosphorylation takes place at two stages of the cycle.

6.

The photophosphorylation takes place at only one stage of the cycle.

 

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