The ATP synthase consists of two parts where:
1. | is a transmembrane channel and protrudes out towards stroma |
2. | is a transmembrane channel and protrudes out towards stroma |
3. | is a transmembrane channel and protrudes out towards lumen of thylakoid |
4. | is a transmembrane channel and protrudes out towards lumen of thylakoid |
How many carbon atoms does the primary carbon dioxide acceptor have in C3 photosynthesis?
1. | 2 | 2. | 3 |
3. | 4 | 4. | 5 |
How many ATP and NADPH are respectively required to make one molecule of glucose through the Calvin pathway?
1. 3 and 2 | 2. 6 and 6 |
3. 9 and 6 | 4. 18 and 12 |
Identify the incorrect statement regarding the comparison of plants to the plants:
1. They tolerate higher temperatures
2. They show a response to high light intensities
3. They have a lower productivity of biomass
4. They lack photorespiration
The bundle sheath cells are characterized by:
I: | a large number of chloroplasts present in them |
II: | thick cell walls impervious to gas exchange |
III: | large intercellular spaces |
1. Only I and II | 2. Only I and III |
3. Only II and III | 4. I, II and III |
The primary acceptor in plants is:
1. RuBP in mesophyll cells
2. RuBP in bundle sheath cells
3. PEP in mesophyll cells
4. PEP in bundle sheath cells
The pathway:
1. is common to all plants
2. takes place in mesophyll cells in plants
3. takes place in bundle sheath cells in plants
4. does not take place in CAM plants
In pathway, the 4-carbon compound transported to bundle sheath cells most commonly is:
1. | Glutamic acid | 2. | Malic acid |
3. | Oxaloacetic acid | 4. | Fumaric acid |
The 2-carbon compound formed in photorespiration is:
1. | Acetyl CoA | 2. | Phosphoglycolate |
3. | Acetic acid | 4. | Ethanol |
Except for plants in shade or in dense forests, light is rarely a limiting factor in nature. This is because:
1. | Dark reactions do not depend on light |
2. | The rate of photosynthesis can be increased by higher carbon dioxide and lower temperatures even in low light conditions |
3. | Light saturation occurs at 10 % of full sunlight |
4. | Carbon fixation is independent of enzymes |