Q. No.One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of:
1.
Violet and green light
2.
Indigo and green light
3.
Orange and yellow light
4.
Blue and red light
In Hatch and Slack pathway, the primary CO2 acceptor is -
1. Oxaloacetic acid
2. Phosphoglyceric acid
3. Phosphoenol pyruvate
4. Rubisco
| 1. | high energy bonds are formed in mitochondrial proteins |
| 2. | ADP is pumped out of the matrix into the inter-membrane space |
| 3. | a proton gradient forms across the inner membrane |
| 4. | there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP) |
In the leaves of C4 plants, malic acid formation during CO2 fixation occurs in the cells of:
1. mesophyll
2. bundle sheath
3. phloem
4. epidermis
| 1. | epidermal cells | 2. | mesophyll cells |
| 3. | bundle sheath | 4. | guard cells |
Cyclic -photophosphorylation results in the formation of:
1. NADPH
2. ATP and NADPH
3. ATP, NADPH, and O2
4. ATP
In photosynthesis, the light-independent reactions take place at?
1. Thylakoid lumen
2. photosystem I
3. photosystem II
4. Stromal matrix
| 1. | lumen of thylakoids | 2. | intermembrane space |
| 3. | antennae complex | 4. | stroma |
Emerson’s enhancement effect and red drop have been instrumental in the discovery of?
| 1. | two photosystems operating simultaneously |
| 2. | photophosphorylation and cyclic electron transport |
| 3. | oxidative photophosphorylation |
| 4. | photophosphorylation and non-cyclic electron transport |
| 1. | C4 | 2. | CAM |
| 3. | Nitrogen –fixer | 4. | C3 |
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