Which is wrong for cytochrome P–450?
1. It contains Fe
2. It is concerned with oxidation
3. It is a pigment
4. It is a coloured cell
What change occurs during conversion of proto chlorophyll to chlorophyll :
1. Addition of 2H in one pyrrole ring
2. Loss of 2H
3. Addition of Mg
4. Loss of Mg
In C3 plants, the first stable product of photosynthesis during the dark reaction is:
1. Oxaloacetic acid
2. 3-phosphoglyceric acid
3. Phosphoglyceraldehyde
4. Malic acid
Photosynthetically active radiation (PAR) represents the following range of wavelengths:
1. 450-950 nm
2. 340-450 nm
3. 400-700 nm
4. 500-600 nm
Plants adapted to low light intensity have:
1. Higher rate of CO2 fixation than the sun plants
2. More extended root system
3. Leaves modified to spines
4. Larger photosynthetic unit size than the sun plants
The first step for initiation of photosynthesis will be:
1. | Photolysis of water |
2. | Excitement of chlorophyll molecule due to absorption of light |
3. | ATP formation |
4. | Glucose formation |
For the synthesis of one glucose molecule, the Calvin cycle operates for:
1. | 2 times | 2. | 4 times |
3. | 6 times | 4. | 8 times |
For the assimilation of one CO2 molecule in C3 plants, the energy required in the form of ATP and NADPH2 is:
1. 2 ATP & 2 NADPH2
2. 5 ATP & 3 NADPH2
3. 3 ATP & 2 NADPH2
4. 18 ATP & 12 NADPH2
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