Q. No.Which is the first CO2 acceptor enzyme in C4 plants:
1. RuDP Carboxylase
2. Phosphoric acid
3. RUBISCO
4. PEP-Carboxylase
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. | \(\mathrm{ADP}+\mathrm{AMP} \xrightarrow{\text { Lightenergy }} \text { ATP }\) |
| 2. | \(\mathrm{ADP}+\text { Inorganic } \mathrm{PO}_4 \xrightarrow{\text { Lightenergy }} \text { ATP }\) |
| 3. | \(\text { ADP }+ \text { Inorganic } \mathrm{PO}_4 \rightarrow \text { ATP }\) |
| 4. | \(\mathrm{AMP}+\text { Inorganic } \mathrm{PO}_4 \xrightarrow{\text { Lightenergy }} \text { ATP }\) |
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. | C3 – Maize |
| 2. | C4 – Kranz anatomy |
| 3. | Calvin cycle - PGA |
| 4. | Hatch and Slack cycle – O.A.A |
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