Read the following four statements A, B, C and D and select the right option having both correct statements:
STATEMENTS:
(A) | Z-scheme of light reaction takes place in the presence of PSI only |
(B) | Only PSI functional in cyclic photophosphorylation |
(C) | Cyclic photophosphorylation results in a synthesis of ATP and NADPH2 |
(D) | Stroma lamellae lack PSII as well as NADP |
Options:
1. A and B
2. B and C
3. C and D
4. B and D
In Kranz anatomy, the bundle sheath cells have:
1. | thick walls, many intercellular spaces and few chloroplasts |
2. | thin walls, many intercellular spaces and no chloroplasts |
3. | thick walls, no intercellular spaces and a large number of chloroplasts |
4. | thin walls, no intercellular spaces and several chloroplasts |
Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on:
1. Membrane potential
2. Accumulation of K ions
3. Proton gradient
4. Accumulation of Na ions
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
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 |
In photosynthesis, energy from light reaction to dark reaction is transferred in the form of:
1. ADP
2. ATP
3. RUDP
4. Chlorophyll
Which one of the following concerns photophosphorylation:
1.
2.
3.
4.
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 pair is wrong:
1. – Maize
2. – Kranz anatomy
3. Calvin cycle - PGA
4. Hatch and Slack cycle – O.A.A