In photosynthesis, the light-independent reactions take place at
1. thylakoid lumen | 2. photosystem l |
3. photosystem ll | 4. stromal matrix |
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The first step for initiation of photosynthesis will be
1. Photolysis of water
2. Excitement of chlorophyll molecule due to absorption of light
3. ATP formation
4. Glucose formation
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In sugarcane plant, is fixed in malic acid in which the enzyme that fixes is
1. Ribulose biphosphate carboxylase
2. Phosphoenol pyruvic acid carboxylase
3. Ribulose phosphate kinase
4. Fructose phosphatase
Photosynthesis in plants is relatively less limited by atmospheric levels because
1. The primary fixation of is mediated via PEP carboxylase.
2. Effective pumping of into bundle sheath cells.
3. Four carbon acids are the primary initial fixation products.
4. RuBisCO in plants has higher affinity for
Which light range is most effective in photosynthesis?
1. Blue | 2. Green |
3. Red | 4. Violet |
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The ions comprising the Oxygen Evolving Complex associated with PS II are:
1. | Manganese and Magnesium | 2. | Manganese and Calcium |
3. | Calcium and Iron | 4. | Magnesium and Iron |
The higher the energy in photons,
1. the longer their wavelengths
2. the shorter their wavelengths
3. the lesser will be the rate of photosynthesis
4. the larger will be the photorespiratory loss
The electrons excited to higher energy levels during photosynthesis belong to:
1. | Water | 2. | RuBP |
3. | glucose | 4. | chlorophyll |
In cyclic electron flow:
1. the electron begins in a pigment complex called photosystem I, passes from the primary acceptor to ferredoxin and then to plastoquinone, then to cytochrome b6f, and then to plastocyanin before returning to chlorophyll.
2. the electron begins in a pigment complex called photosystem II, passes from the primary acceptor to ferredoxin and then to plastoquinone, then to cytochrome b6f, and then to plastocyanin before returning to chlorophyll.
3. the electron begins in a pigment complex called photosystem I, passes from the primary acceptor to ferredoxin and then to plastocyanin, then to cytochrome b6f, and then to plastoquinone before returning to chlorophyll.
4. the electron begins in a pigment complex called photosystem II, passes from the primary acceptor to ferredoxin and then to plastocyanin, then to cytochrome b6f, and then to plastoquinone before returning to chlorophyll.
Identify the incorrect statement regarding non-cyclic photophosphorylation:
1. Being a light reaction, non-cyclic photophosphorylation occurs in the thylakoid membrane.
2. The photosystem II complex replaces its lost electrons from an external source.
3. It generates both ATP and NADPH
4. When the chloroplast runs low on ATP for the Calvin cycle, the plant may shift from cyclic to non-cyclic electron flow.