Melvin Calvin used ------- radioactive in-----studies for the discovery of the first CO₂ fixation product.

In photosynthesis, energy from light reaction to dark reaction is transferred in the form of:
1. ADP
2. ATP
3. RUDP
4. Chlorophyll

ATP and NADPH produced during photosynthesis, are used in which of the following reactions?
a. Catabolic
b. Biosynthetic phase
c. amphibolic
d. Hydrolytic phase

Dark reactions of photosynthesis are actually not totally independent of light as:

(1) The initial reactions occur in the presence of light.

(2) The reaction will be inhibited by the presence of light.

(3) They can occur during the day as well.

(4) They utilize the products of the light reaction.

PS II is not found involved in

1. Non-cyclic photophosphorylation

2. Cyclic photophosphorylation

3. Photolysis of H₂O

4. Formation of NADPH 

The following processes occur during photosynthesis

(i) Reduction of carbon dioxide

(ii) The splitting of water

(iii) The synthesis of glucose

(iv) Release of oxygen

(v) Formation of ATP

Which one of the following combinations is correct for the light phase ?

1. i, ii and iii

2. iii, iv and v

3. i, iii and iv

4. ii, iv and v

What is the primary acceptor of CO₂ in dark reaction?
1. Ketose sugar
2. Aldose sugar
3. Fatty acid
4. Sucrose

The C4 plants differ from C3 plants with reference to the: 

1. substrate that accepts CO₂ in carbon assimilation

2. type of end product

3. type of pigment involved in photosynthesis

4. end product that will be formed 

How many of the following statements are correct?
i. Products of dark reaction are substrates of light reaction.
ii. Products of light reaction are substrates of dark reaction.
iii. In the stroma, enzymatic reactions incorporate CO₂ into the plant leading to the synthesis of sugar.
iv. Dark reactions are directly light-driven.
v. Chloroplast is a single membranous organelle.

1. 2
2. 3
3. 4
4. 1