PEP is primary CO2 acceptor in
1. | C4 plants |
2. | C3 plants |
3. | C2 plants |
4. | both C3 and C4 plants |
Splitting of water is associated with
1. | photosystem I |
2. | lumen of thylakoid |
3. | both photosystems I and II |
4. | inner side of thylakoid membrane |
The correct sequence of flow of electrons in the light reaction is:
1. | PS II, plastoquinone, cytochromes, PS I, ferredoxin |
2. | PS I, plastoquinone, cytochromes, PS II, ferredoxin |
3. | PS I, ferredoxin, PS II |
4. | PS I, plastoquinone, cytochromes, PSII, ferredoxin |
The enzyme that is not found in a C3 plant is
1. RuBP carboxylase
2. PEP carboxylase
3. NADP reductase
4. ATP synthase
The reaction that is responsible for the primary fixation of CO2 is catalysed by
1. | RUBP carboxylase |
2. | PEP carboxylase |
3. | RuBP carboxylase and PEP carboxylase |
4. | PGA synthase |
When CO2 is added to PEP, the first stable product synthesized is
1. pyruvate
2. glyceraldehyde-3-phosphate
3. phosphoglycerate
4. oxaloacetate
Which pigment acts directly to convert light energy to chemical energy ?
1. Chlorophyll a
2. Chlorophyll b
3. Xanthophyll
4. Carotenoid
Which range of wavelength (in nm) is called photosynthetically active radiation (PAR) ?
1. 100 - 390
2. 390-430
3. 400 - 700
4. 760- 100,00
Which light range is most effective in photosynthesis ?
1. Blue
2. Green
3. Red
4. Violet
Chemosynthetic bacteria obtain energy from
1. Sun
2. Infra red rays
3. Organic substances
4. Inorganic chemicals