The order of the three steps of Calvin cycle is-
a. Carboxylation- Reduction-Regeneration
b. Reduction-Regeneration- Carboxylation
c. Regeneration-Carboxylation- Reduction
d. Reduction- Carboxylation –Regeneration

For the formation of one molecule of Glucose, how many turns of fixation are required?
a. 3
b. 2
c. 6
d. 4

Melvin-Calvin used ------- radioactive in-----studies for the discovery of first CO2 fixation product.
a. 14C , Fungal photosynthesis
b. 14C , Algal photosynthesis
c. 15N , Fungal photosynthesis
d. 15N , Algal photosynthesis

Dark reaction depends upon-
a. Presence of darkness
b. Presence of light
c. Products of light reactions
d. Products of biosynthetic phase

The first dark reaction or CO2 fixation product is-
a. 3C – Organic Acid
b. 6C – Organic Acid
c. 5C – Organic Acid
d. 1C – Organic Acid

Which of the following statements is incorrect?

(1) RuBisCO is a bifunctional enzyme

(2) In C4 plants, the site of RuBisCO activity is mesophyll cell

(3) The substrate molecule for RuBisCO activity is a 5-carbon compound

(4) RuBisCO action requires ATP and NADPH 

The synthesis of one molecule of glucose during the Calvin cycle requires.

1. 12 molecules of ATP and 18 molecules of $NADP{H}_2$

2. 6 molecules of ATP and 12 molecules of $NADP{H}_2$

3. 18 molecules of ATP and 12 molecules of $NADP{H}_2$

4. 12 molecules of each of ATP and $NADP{H}_2$

How many molecules of 3-PGA are produced during a single run of carboxylation?
1. 3
2. 1
3. 2
4. 4

If there are 12 molecules of CO₂ to be fixed in photosynthesis, then how many turns of the Calvin cycle and how many molecules of glucose will be synthesized respectively?

1. 9 turns, 2 molecules.
2. 12 turns, 1 molecule.
3. 6 turns, 1 molecule.
4. 12 turns, 2 molecules.

Match the following columns and select the correct option.

1. a (ii), b (iv), c (iii), d (i)
2. a (iii), b (iv), c (ii), d (i)
3. a (ii), b (i), c (iii), d (iv)
4. a (iii), b (i), c (ii), d (iv)