Which is the first CO2 acceptor enzyme in C4 plants:
1. RuDP Carboxylase
2. Phosphoric acid
3. RUBISCO
4. PEP-Carboxylase
In photosynthesis, energy from light reaction to dark reaction is transferred in the form of:
1. ADP
2. ATP
3. RUDP
4. Chlorophyll
Which of the following absorbs light energy for photosynthesis:
1. Chlorophyll
2. Water molecule
3. O2
4. RUBP
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 one of the following concerns photophosphorylation:
1.
2.
3.
4.
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
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
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
Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants:
1. | Blue and green | 2. | Green and red |
3. | Red and violet | 4. | Violet and blue |
Which pair is wrong:
1. – Maize
2. – Kranz anatomy
3. Calvin cycle - PGA
4. Hatch and Slack cycle – O.A.A