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 |
The correct sequence of flow of electrons in the light reaction is
1. | PSII, plastoquinone, cytochromes, PS I, ferredoxin |
2. | PSI, plastoquinone, cytochromes, PS II, ferredoxin |
3. | PSI, ferredoxin, PS II, |
4. | PSI, plastoquinone, cytochromes, PS II, ferredoxin |
The reactions of the Calvin cycle can take place as long as which of the following products of the light dependent reactions are available?
1. | Water and Glucose | 2. | Water and ATP |
3. | Oxygen and Carbon dioxide | 4. | ATP and NADPH |
The factors that can be limiting for the light independent reactions of photosynthesis are:
1. , temperature, and light
2. , light, and water
3. water, temperature, and
4. oxygen, water, and temperature
The wavelengths of light most useful in photosynthesis are:
1. | green and orange | 2. | red and blue |
3. | infrared and yellow | 4. | red and green |
Oxygen, during oxygenic photosynthesis, is produced during:
1. cyclic photophosphorylation
2. the light-dependent reactions involving photosystems I and II
3. Calvin cycle
4. the Krebs cycle
The greatest problem with photorespiration is faced by:
1. | C4 plants | 2. | C3 plants |
3. | CAM plants | 4. | purple sulfur bacteria |
Identify the incorrectly matched pair:
1. | PS I | P700 is reaction center |
2. | RuBP | 5 carbon compound |
3. | PS II | P680 is reaction center |
4. | C3 plants | Kranz anatomy |