Which pair is wrong:
1.  $C_3$ – Maize
2.  $C_4$ – Kranz anatomy
3.  Calvin cycle - PGA
4.  Hatch and Slack cycle – O.A.A

Which pigment system is inactivated in the red drop:
1.  PS-I and P.S-II
2.  PS – I
3.  PS – II
4.  None

Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants:

Which one of the following is wrong in relation to photorespiration:
1. It occurs in chloroplasts
2. It occurs in the daytime only
3. It is a characteristic of C₄ plants
4. It is a characteristic of C₃ plants

In the sugarcane plant, ¹⁴CO₂ is fixed in malic acid because the enzyme that fixes CO₂ is:

1. Ribulose biphosphate carboxylase

2. Phosphoenol pyruvic acid carboxylase

3. Ribulose phosphate kinase

4. Fructose phosphatase

Stomata of CAM plants:

1. Are always open

2. Open during the day and close at night

3. Open during the night and close during the day

4. Never open

Which one of the following concerns photophosphorylation: 

1. $\mathrm{ADP}$ $+$ $\mathrm{AMP}$ $\stackrel{\mathrm{Lightenergy}}{\to }$ $\mathrm{ATP}$

2. $\mathrm{ADP}$ $+$ $\mathrm{Inorganic}$ ${\mathrm{PO}}_4$ $\stackrel{\mathrm{Lightenergy}}{\to }$ $\mathrm{ATP}$

3. $\mathrm{ADP}$ $+$ $\mathrm{Inorganic}$ ${\mathrm{PO}}_4$ $\stackrel{}{\to }$ $\mathrm{ATP}$

4. $\mathrm{AMP}$ $+$ $\mathrm{Inorganic}$ ${\mathrm{PO}}_4$ $\stackrel{\mathrm{Lightenergy}}{\to }$ $\mathrm{ATP}$

What happens in light reaction (Photo chemical reaction):

1. Formation of ATP and NADPH₂

2. Formation of ATP

3. Formation of sugar

4. Breakdown of sugar

Which of the following absorbs light energy for photosynthesis:
1. Chlorophyll
2. Water molecule
3. O₂
4. RUBP

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