Photosynthesis [Calvin Cycle]

Question 1

Overall reaction for the Calvin cycle

Answer 1

3RuBP + 5H2O + 6NADPH + 9ATP + 3CO2

—> 3G3P + others

Question 2

Where does the Calvin cycle occur

Answer 2

Stroma

Question 3

_____ is fixed to RuBP by ____

Answer 3

CO2

RiBisCo

Question 4

How many cycles are needed to get 1 glucose

Answer 4

2 cycles because you need 2G3P

Question 5

What are the 3 steps?

Answer 5

Carbon fixation
Reduction
Regeneration of RuBP

Question 6

RuBisCo + 3CO2 —>

Answer 6

RuBP with thing attached

Question 7

RuBP —> _____ + ___

Answer 7

3P Glycerate + 6ATP

Question 8

3P glycerate + _____ —> ____

Answer 8

6ATP

1,3BiP Glycerate

Question 9

1,3BiP Glycerate + ______ —> _____

Answer 9

6NADPH

—> 6G3P

Splits into 1G3P and 5G3P

Question 10

5G3P + ____ —> ____

Answer 10

3ATP
RuBP

Which then goes to RuBisCo

Question 11

What does RuBisCo bind to in photorespiration? What is the consequence of this?

Answer 11

O2

Wastes water.

Question 12

Which types of plants need more water? Why?

Answer 12

C3 plants need more water bc they use it less efficiently

Question 13

C4 plants concentrate CO2 - how?

Answer 13

Concentrate it into Oxaloacetate to shuttle it in so it can go through the cycle. This decreases competition with O2 at RuBisCo.

Question 14

Which type of plants use more ATP and cyclic electron flow?

Answer 14

C4