Multiple Choice Questions on Calvin Cycle / Dark reaction / C3 Cycle

MCQ on Calvin Cycle, Dark reaction, or C3 Cycle

1. Which of the following is the correct statement regarding Calvin Cycle?

a) it cannot occur during day time

b) it is light dependent

c) it is light independent

d) it occurs rapidly at night

MCQ on Calvin Cycle

2. The rate limiting step of Calvin cycle is catalyzed by

a) RuBisCO

b) Phosphoglycerate kinase

c) Ribose phosphate isomerase

d) transketolase


3. How many phosphoglyceraldehyde is required to form a glucose molecule?

a) 1

b) 2

c) 3

d) 4


4. Which of the following is involved in the activation of RuBisCO?

a) K+

b) Zn2+

c) Mg2+

d) Ca2+


5. How many ATP is required for the synthesis of 1 molecule of glucose?

a) 6

b) 12

c) 18

d) 24


6. How many NADPH is required for the synthesis of 1 molecule of glucose?

a) 6

b) 12

c) 18

d) 24


7. All the following enzymes are involved in regeneration of RuBP except   

a) Phosphoglycerate kinase

b) Transketolase

c) Ribose phosphate isomerase

d) Phosphoribulokinase


8. How many ATP is required for the regeneration of RuBP in Calvin cycle?

a) 6

b) 12

c) 18

d) 24

9. The first stable compound formed in Calvin Cycle is

a) Glyceraldehyde 3 phosphate

b) 1,3 bi phosphoglycerate

c) 3-phosphoglyceric acid

d) Ribulose bi phosphate


10. Calvin cycle is also called as   

a) Reductive pentose phosphate cycle

b) CBB cycle

c) Dark reaction

d) All of these

11. The 𝐶3 cycle has been often called an evolutionary flaw. What may be Plant Physiology basics the reason for saying so?

I. The rubisco enzyme that carries out 𝐶3 cycle is equal affinity to Oxygen

II. The flaws in the 𝐶3 cycle leads to Photorespiration which is less energy efficient

III. The statement is incorrect, 𝐶3 cycle has no flaw

Choose the correct statements

a) I

b) II

c) I and II

d) III

Learn more: MCQ on Photosynthesis  Practice Test on Photosynthesis

Answers

1. c) it is light independent

2. a) RuBisCO

3. b) 2

4. c) Mg2+

5. c) 18

6. b) 12

7. a) Phosphoglycerate kinase

8. a) 6

9. c) 3-phosphoglyceric acid

10. d) All of these

11.c) I and II

Post a Comment

We love to hear from you ! Leave us a comment.

or

If you find any mistake please let us know..

Happy Learning...

Previous Post Next Post