Chapter 5 Pt2

Question 1

What are the three steps of the Calvin cycle?

Answer 1

carbon fixation, PGAL
synthesis, and regeneration of RuBP

Question 2

What generally occurs in carbon fixation

Answer 2

CO2 is fixed to RuBP

Question 3

What generally occurs in Pgal synthesis

Answer 3

PGA is reduced to PGAL

Question 4

What generally occurs in regeneration of RuBP

Answer 4

RuBP is regenerated

Question 5

How many carbons atoms are
found in 1 molecule of RuBP

Answer 5

5

Question 6

How many carbons atoms are
found in 1 molecule of CO2

Answer 6

1

Question 6

How many carbons atoms are
found in 1 molecule of PGA

Answer 6

3

Question 7

How many carbons atoms are
found in 1 molecule of glucose

Answer 7

6

Question 7

How many carbons atoms are
found in 1 molecule of PGAL

Answer 7

3

Question 8

What is the enzyme responsible for combining
RuBP with CO2?

Answer 8

Rubisco

Question 9

What is required to convert PGAL to RuBP?

Answer 9

ATP and NADPH

Question 10

What occurs if RuBP is not available?

Answer 10

The carbon reaction stops and photosynthesis cannot occur.