Group 11: Calvin Cycle

Question 1

What does the carbon dioxide form when it leaves the Calvin cycle?

Answer 1

Sugar or Glucose

Question 2

What does the Calvin cycle uses as energy source?

Answer 2

ATP

Question 3

For the net synthesis of one molecule of G3P, how many cycle must take place?

Answer 3

the cycle must take place three times, fixing three molecules of CO2— one per turn of the cycle.

Question 4

Where does the light independent reaction or Calvin cycle take place?

Answer 4

Stroma

Question 5

What are the 3 phases of the Calvin cycle?

Answer 5

Phase 1: Carbon Fixation
Phase 2: Reduction
Phase 3: Regeneration of RUBP

Question 6

This is the process of assimilating carbon from an inorganic compound and incorporating it into an organic compound.

Answer 6

Carbon Fixation

Question 7

What do you call the 3-carbon compound when the unstable 6-carbon molecule splits into two in the carbon fixation phase of the Calvin cycle?

Answer 7

3-phosphoglycerate (3-PGA)

Question 8

In the second phase, what is used to convert the 3-PGA molecules into molecules of a three-carbon sugar, glyceraldehyde-3- phosphate (G3P)?

Answer 8

ATP and NADPH

Question 9

What do you call the 5-carbon sugar that fixes the carbon dioxide when it enters the Calvin cycle?

Answer 9

ribulose biphosphate (RuBP)

Question 10

How many turns does it need to produce 1 molecule of glucose?

Answer 10

6 turns

Question 11

In completing 1 molecule of glucose, how many CO2, ATP, and, NADPH are all-in-all needed?

Answer 11

6 CO2, 18 ATP, and 12 NADPH

Question 12

How many RuBP molecules are created with the remaining 5 G3P molecules in the regeneration phase of the Calvin cycle?

Answer 12

3 RuBP molecules (5-carbons each)