The light-independent stage

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  • Created by: sophiee96
  • Created on: 13-08-13 10:46
Where does the light-independent stage of photosynthesis occur?
In the stroma of the chloroplast
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The reactions use the products of which stage?
The light-dependent stage
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What are these products?
ATP and reduced NADP
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What does ATP act as?
A source of energy
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What does the reduced NADP act as?
The source of the reducing power to reduce CO2 and synthesise heroes sugar
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First thing that happens in the light-independent stage?
A five-carbon acceptor molecule, ribulose bisphosphate combines with carbon dioxide
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What does this form?
An unstable six-carbon compound
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What happens to this compound?
It immediately splits into two molecules of three-carbon compound
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What are these called?
Glycerate-3-phosphate
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What then happens to the glycerate-3-phosphate?
It is phosphorylated by ATP and then reduced by reduced NADP
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To form what?
Triose phosphate
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Some of this three-carbon sugar can be built into what?
Glucose phosphate
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And then into starch by what process?
Condensation
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In order for the cycle to continue most of the triose phosphate formed enters a series of reactions driven by what?
ATP
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Which result in the regeneration of what?
Ribulose bisphosphate
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The NADP is reformed and goes where?
Back into the light-dependent reaction
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Why?
So it can be reduced again
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Other cards in this set

Card 2

Front

The reactions use the products of which stage?

Back

The light-dependent stage

Card 3

Front

What are these products?

Back

Preview of the front of card 3

Card 4

Front

What does ATP act as?

Back

Preview of the front of card 4

Card 5

Front

What does the reduced NADP act as?

Back

Preview of the front of card 5
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