LIR Flashcards
1
Q
- Where does the Light independent reaction happen?
A
In the stroma inside chloroplasts.
2
Q
- What is the enzyme that catalyses the first step of the Calvin cycle called?
A
rubisco
3
Q
- What joins to CO2 to become the 3 carbon molecule called Glycerate-3-phosphate?
A
Ribulose Bisphosphate
4
Q
4.How many ATP and reduced NADP are needed to produce Triose phosphate from glycerate 3-phosphate?
A
2 ATP and 2NADPH
5
Q
- What happens to reduced NADP when it donates its Hydrogen?
A
It becomes oxidised
6
Q
- How is ribulose bisphosphate (5C) regenerated?
A
From Triose phosphate using 1 ATP
7
Q
- How many molecules of Triose phosphate (3C) are regenerated to ribulose bisphosphate (5C)?
A
5 out of every 6 molecules are regenerated to RuBP
8
Q
- How are hexose sugars formed?
A
Made from 2 Triose phosphate joined together, this needs 6 turns of the Calvin cycle
9
Q
- What is carboxylation?
A
The addition of CO2
10
Q
- What would happen to the LIR in the absence of the LDR?
A
It would stop as glycerate-3-phosphate would not be turned into triose phosphate, as reduced NADP and ATP from the LDR are needed for this to occur
11
Q
- Where does the carbon dioxide come from for the Calvin cycle?
A
It diffuses into the leaf from the atmosphere OR aquatic environment through the stomata.
