AP BIOLOGY

PHOTOSYNTHESIS

THE CALVIN CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many ATP do you need in one turn of the Calvin Cycle?
A
1
B
6
C
9
D
12
Explanation: 

Detailed explanation-1: -ATP. 9 ATP are converted to 9 ADP ( 6 during the fixation step, 3 during the regeneration step).

Detailed explanation-2: -The Calvin cycle uses 18 ATP and 12 NADPH molecules to produce one glucose molecule.

Detailed explanation-3: -The Calvin cycle: three molecules of CO2 fixed give a net yield of one molecule of glyceraldehyde 3-phosphate at the net cost of nine molecules of ATP and six molecules of NADPH.

Detailed explanation-4: -24 ATP, 36 NADPH, 12 Calvin cycles.

Detailed explanation-5: -To make one molecule of glucose? To go through one spin of the Calvin Cycle, 3 CO2, 6 NADPH, AND 9 ATP are needed and to make one molecule of glucose, two spins of the Calvin Cycle happen which doubles the amount (takes 6 CO2, uses 12 NADPH, AND uses 18 ATP).

There is 1 question to complete.