3.3 The light independant reaction.

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What are ATP and NADP used for in the light dependant reaction?
To reduce Carbon dioxide.
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What is role of RUBISCO in the calvin cycle?
It accepts and combins with a molecule of C02 to produce 2 molecules of 2 molecules of glycerate 3 - phosphate (GP)
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How is the reduced NADP from the light dependant reaction used in the light independant reaction?
It is used to reduce ( donate hydrogen) to glycerate 3 -phosphate (GP) to triose phosphate (TP).
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Apart from reduced NADP which other product of the light dependant reaction is used in the light independant reaction?
ATP
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Where precisely in a plant cell are the enzymes involed in the calvin cycle found?
Stroma of the chloroplasts
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Light is not required for the calvin cycle to take place. Explain therefore why the calvin cycle cannot take place for long in the absence of light.
Because it requires ATP and reduced NADP in order to work. Both are products of the light dependant reaction which does need light. No light means no ATP or reduced NADP are produced so the calvin cycle cannot continue once either are used up.
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What is the role of triosphosphate in the calvin cycle?
It can be converted in to useful organic substances such as glucose. But most of it is used to regenerate Rubisco using ATP from like dependant reaction.
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Card 2

Front

What is role of RUBISCO in the calvin cycle?

Back

It accepts and combins with a molecule of C02 to produce 2 molecules of 2 molecules of glycerate 3 - phosphate (GP)

Card 3

Front

How is the reduced NADP from the light dependant reaction used in the light independant reaction?

Back

Preview of the front of card 3

Card 4

Front

Apart from reduced NADP which other product of the light dependant reaction is used in the light independant reaction?

Back

Preview of the front of card 4

Card 5

Front

Where precisely in a plant cell are the enzymes involed in the calvin cycle found?

Back

Preview of the front of card 5
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