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Q. No.Fixation of one CO2, molecule through Calvin cycle requires:
1. 1 ATP and 2 NADPH2
2. 2 ATP and 2 NADPH2
3. 3 ATP and 2 NADPH2
4. 2 ATP and 1 NADPH2
Subtopic: Dark Reaction : Calvin Cycle |
85%
From NCERT
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Molecular formula of chlorophyll-b is
1. \(\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}\)
2. \(\mathrm{C}_{55} \mathrm{H}_{72} \mathrm{O}_5 \mathrm{~N}_4 \mathrm{Mg}\)
3. \(\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_5 \mathrm{~N}_4 \mathrm{Mg}\)
4. \(\mathrm{C}_{54} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}\)
1. \(\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}\)
2. \(\mathrm{C}_{55} \mathrm{H}_{72} \mathrm{O}_5 \mathrm{~N}_4 \mathrm{Mg}\)
3. \(\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_5 \mathrm{~N}_4 \mathrm{Mg}\)
4. \(\mathrm{C}_{54} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}\)
Subtopic: Chloroplast Structure |
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Inhibitory effect of O2 on photosynthesis is?
1. CAM pathway
2. Photorespiration
3. Fermentation
4. Krebs cycle
1. CAM pathway
2. Photorespiration
3. Fermentation
4. Krebs cycle
Subtopic: Photorespiration |
85%
From NCERT
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Subtopic: Pigments |
80%
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Subtopic: Dark Reaction: Biosynthetic Phase |
51%
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Which of these is incorrect for C4-plants?
1. Kranz anatomy
2. CO2 acceptor is PEP
3. PEP case in mesophyll
4. RuB is CO in mesophyll
1. Kranz anatomy
2. CO2 acceptor is PEP
3. PEP case in mesophyll
4. RuB is CO in mesophyll
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
89%
From NCERT
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. Conditions required for cyclic photophosphorylation are
1. aerobic condition, low light intensity
2. aerobic condition, optimum light intensity
3. anaerobic condition, low light intensity
4. anaerobic condition, optimum light intensity
1. aerobic condition, low light intensity
2. aerobic condition, optimum light intensity
3. anaerobic condition, low light intensity
4. anaerobic condition, optimum light intensity
Subtopic: Light Reaction: Photophosphorylation |
64%
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The molecular formula of chl.b is:
1. C55H70O6N4Mg
2. C55H72O5N4Mg
3. C55H70O5N4Mg
4. C54H70O6N4Mg
1. C55H70O6N4Mg
2. C55H72O5N4Mg
3. C55H70O5N4Mg
4. C54H70O6N4Mg
Subtopic: Pigments |
65%
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T.W Engelmann:
| I: | described first absorption spectrum of photosynthesis. |
| ii: | first showed that it is only the green part of the plants that could release oxygen. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Historical View: Experiments |
From NCERT
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Membranous system consisting of grana in the chloroplast:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | is responsible for trapping the light energy. |
| II: | is responsible for the synthesis of ATP and NADPH. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Chloroplast Structure |
88%
From NCERT
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