What is the primary product of light independent reactions

Biology

1 answer:

SOVA2 [1]3 years ago

7 0

The primary products of the light independent reactions (after one turn of the cycle) are:

a) two G3P molecules

b) three ADP

c) two NADP+

However ADP and NADP+ are not really "products". They are regenerated and later used again in the Light-dependent reactions. Each G3P molecule is composed of three carbons.

For the Calvin cycle (Light independent cycle) to continue, 5 out of the 6 carbons provided by the two G3P molecules are used to regenerate ribulose 1, 5 phosphate. Therefore there remains only one carbon for the next turn of the cycle.

One molecule of glucose requires 6 turns of the cycle. Any extra G3P is used to make starch, sucrose and cellulose.

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balandron [24]

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