The Light - Independent Reaction

Question 1

In which part of a chloroplast does the light independent reaction occur ?
(1)

Answer 1

Stroma

Question 2

Which process is the source of the ATP used In the conversation of glycerate 3-phosphate to triode phosphate?
(1)

Answer 2

Light-dependent reaction/ phosphorylation

Question 3

What proportion triose phosphate molecules is converted to ribulose biphosphate ?

Answer 3

5 out of 6 / 83%

Question 4

Explain why the light - independent reaction slows down at lower temperatures
(2)

Answer 4

1. Enzymes involved/ not photochemical reaction

2. Slow rate of enzyme /chemical reaction at low temperature/ less kinetic energy / fewer collisions