17.4 Factors affecting photosynthesis

Question 1

What happens to calvin cycle if light intensity reduced?

Answer 1

Slower rate in light dependent, so less ATP and NADPH,, needed to convert GP to TP.
So GP will increase, TP will decrease and RuBP will decrease.

Question 2

What happpens to calvin cycle at low CO2 conc?

Answer 2

Less GP and TP. More RuBP - still formed from TP but not used in carbon fixation