Q. No.In plant cells ATP is synthesised in-
1.
mitochondria
2.
chloroplast
3.
mitochondria and chloroplast
4.
in mitochondria during day and in chloroplasts during night.
Where does cyclic photo-phosphorylation takes place?
| 1. | membranous system of chloroplast |
| 2. | stroma lamellae |
| 3. | grana |
| 4. | stroma |
Which of the following is present in membrane of stroma lamellae?
a. NADP reductase
b. PS-I
c. PS-II
d. water splitting complex.
If only light of wavelength beyond 680 nm is available then which process will remain continue?
a. cyclic photo-phosphorylation
b. non-cyclic photo-phosphorylation
c. ATP and NADPH
d. evolution of oxygen
Synthesis of ATP from ADP and inorganic phosphate in the presence of light is known as-
a. phosphorylation
b. photo-phosphorylation
c. photorespiration
d. photooxidation.
Which of the following statement is correct?
| 1. | H2S is the hydrogen donor for purple and green sulphur bacteria. |
| 2. | H2O is the hydrogen donor for purple and green sulphur bacteria. |
| 3. | Oxygen is evolved by the purple and green sulphur bacteria. |
| 4. | Oxygen evolved by the green plants comes from CO2. |
The mechanism of ATP synthesis is explained by
a. Chemiosmotic Hypothesis
b. Photophosphorylation
c. Electron Transport Chain
d. Splitting of Water
ATP synthesis is linked to-
| 1. | Development of electron gradient |
| 2. | Development of atomic gradient |
| 3. | Development of proton gradient |
| 4. | Flow of electrons across the membrane |
The difference in development of proton gradient in photosynthesis and respiration is-
a. Photosynthesis has thylakoid membrane across which proton gradient is generated
b. Proton accumulation is inside the membrane of thylakoid.
c. both a and b
d. Mitochondrial membrane is involved
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