11.3- The light-independent reaction

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  • Created by: Megan2413
  • Created on: 27-09-17 15:17
What is the cycle of the light-independent reaction called?
The Calvin cycle
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What happens to the carbon dioxide entering through stomata?
It dissolves in water around the walls of the mesophyll cells and diffuses into the stroma of the chloroplast
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What does carbon dioxide react with the form glycerate 3-phosphate (GP)?
Ribulose bisphosphate (RuBP)
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Which enzyme catalayses this reaction?
Rubisco
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How many molecules of glycerate 3-phosphate are formed?
2
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What is produced when reduced NADP reduces glycerate 3-phosphate (GP)?
Triose phosphate (TP)
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Where is the energy supplied from for this reaction?
ATP
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What happens to the reduces NADP once it has reduced glycerate 3-phosphate (GP)?
It is re-formed and goes back to the light-dependent reaction to be reduced again
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What can be formed from some of the triose phophate molecules (TP)?
Organic substances (e.g. starch, cellulose, glucose, amino acids, nucleic acids)
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What happens to most of the triose phosphate molecules (TP) instead?
They are used to regenerate ribulose biphosphate (RuBP) using ATP from the light-dependent reaction
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Where does the light-independent reaction take place?
In the chloroplast stroma
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Give four reasons as to how the stroma is adapted to the light-independent reaction?
- It contains necessary enzymes - It is membrane bound so it is a fluid highly concentrated with enzymes and substrates can be maintained within it - Surrounds grana so products of light-dependent reaction can easily diffuse into stroma -->
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Contains DNA and ribosomes so can quickly synthesise proteins involved in the light-independent reaction
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Other cards in this set

Card 2

Front

What happens to the carbon dioxide entering through stomata?

Back

It dissolves in water around the walls of the mesophyll cells and diffuses into the stroma of the chloroplast

Card 3

Front

What does carbon dioxide react with the form glycerate 3-phosphate (GP)?

Back

Preview of the front of card 3

Card 4

Front

Which enzyme catalayses this reaction?

Back

Preview of the front of card 4

Card 5

Front

How many molecules of glycerate 3-phosphate are formed?

Back

Preview of the front of card 5
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