1. Which of the following is correct about biosynthetic phase?
a) \[C_{14}\] isotope is used to find out this pathway
b) Calvin worked on this pathway
c) Melvin Calvin used photosynthetic algae for this pathway
d) All the above
Explanation: All the above
2.The similarity between \[C_{3}\] and \[C_{4}\] pathway is:
a) Both are equally efficient.
b) Organic acid is formed as the first product of \[CO_{2}\] fixation.
c) Both requires one type of cell to occur.
d) Both takes place in all the plants.
Explanation: Organic acid is formed as the first product of \[CO_{2}\] fixation
3.Which pathway takes place in all photosynthetic plant?
a) \[C_{3}\]
b) \[C_{4}\]
c) Both (a) and (b)
d) None of theses
Explanation: \[C_{3}\]
4. For easy understanding, the Calvin cycle is divided into how many stages?
a) 1
b) 2
c) 3
d) 4
Explanation: 3 stages
5. Calvin cycle includes
a) Carboxylation
b) Reduction
c) Regeneration of RuBP
d) None of these
Explanation: None of these
6. Which process of Calvin cycle requires RuBP?
a) Carboxylation
b) Reduction
c) Regeneration
d) None of theses
Explanation: Carboxylation process of Calvin cycle requires RuBP.
7. Reduction process of Calvin cycle requires how many ATP and NADPH for the reduction of
one molecule of \[CO_{2}\]?
a) 2 mole ATP and 3 mole NADPH
b) 2 mole ATP and 2 mole NADPH
c) 1 mole ATP and 2 mole NADPH
d) 3 mole ATP and 2 mole NADPH
Explanation: 2 mole ATP and 2 mole NADPH
8. How many moles of ATP is required to regenerate one mole of RuBP?
a) 1
b) 2
c) 3
d) 4
Explanation: 1 mole
9. The first stable product of Calvin cycle has
a) 2 carbon atoms
b) 3 carbon atoms
c) 4 carbon atoms
d) 6 carbon atoms
Explanation: The first stable product of Calvin cycle has 3 carbon atoms.
10. In dark reaction, the first reaction is
a) Carboxylation
b) Decarboxylation
c) Dehydrogenation
d) Deamidation
Explanation: In dark reaction, the first reaction is carboxylation.