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Q. No.Consider the given statements:
I:
Wheat, rice and oat plants represent C3 plants.
II:
Sugarcane and corn represent C4 plants.
III:
Cacti and many desert plants are CAM plants.
1.
Only I and II are correct
2.
Only I and III are correct
3.
Only II and III are correct
4.
I, II and III are correct
Subtopic: Questions on Calvin Cycle | Question on C4 Pathway | CAM Pathway | Questions on Photorespiration |
84%
From NCERT
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During photosynthesis in higher plants:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | carbon dioxide is reduced. |
| II: | oxygen is released. |
| III: | the hydrogen carrier is NAD. |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Introduction | Photosynthetic Pigments | Light Reaction: Electron Transport | Dark Reaction: Biosynthetic Phase |
55%
From NCERT
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Consider the given two statements:
| Assertion (A): | Light is required for the light dependent reactions of photosynthesis. |
| Reason (R): | Light splits ATP molecules which generate the energy necessary to power the light independent reactions. |
| 1. | (A) is True, (R) is False |
| 2. | Both (A) and (R) are True and (R) correctly explains (A) |
| 3. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 4. | Both (A) and (R) are False |
Subtopic: Light Reaction: Photophosphorylation | Light Reactions :1 | Light Reactions :2 | Light Reactions :3 |
62%
From NCERT
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A first action spectrum of photosynthesis was described by:
| 1. | Joseph Priestley | 2. | Julius von Sachs |
| 3. | Robin Hill | 4. | T. W. Engelmann |
Subtopic: Historical View: Experiments |
95%
From NCERT
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On the chromatogram, which of the following pigments appear yellow green?
| 1. | Chlorophyll a | 2. | Chlorophyll b |
| 3. | Xanthophyll | 4. | Carotenoid |
Subtopic: Pigments |
81%
From NCERT
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How many water molecules need to split in photolysis of water during oxygenic photosynthesis to produce one molecule of oxygen?
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Introduction | Photosynthetic Pigments | Photosystems |
80%
From NCERT
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The process through which ATP is synthesised by cells in chloroplast is called:
| 1. | Dark reaction |
| 2. | Substrate level phosphorylation |
| 3. | Oxidative photophosphorylation |
| 4. | Photophosphorylation |
Subtopic: Light Reaction: Photophosphorylation | Light Reactions :1 | Light Reactions :2 | Light Reactions :3 |
67%
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In cyclic flow of electrons:
| 1. | Both ATP and NADPH are produced |
| 2. | Photolysis of water produces oxygen |
| 3. | Excited electron does not pass on to NADP+ but is cycled back to the PS I complex through the electron transport chain |
| 4. | Only PS II is functional |
Subtopic: Photosystems |
89%
From NCERT
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Ribulose bisphosphate (RuBP) is a:
1. aldotriose sugar
2. ketohexose sugar
3. ketopentose sugar
4. aldopentose sugar
1. aldotriose sugar
2. ketohexose sugar
3. ketopentose sugar
4. aldopentose sugar
Subtopic: Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) |
72%
From NCERT
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The molecule used to fix carbon dioxide in Calvin cycle is:
| 1. | Acetyl CoA, a 2 carbon molecule |
| 2. | G3P (Glyceraldehyde-3-phosphate), a 3 carbon molecule |
| 3. | RuBP (Ribulose-1,5-bisphosphate), a 5 carbon molecule |
| 4. | Citrate, a 6 carbon molecule |
Subtopic: Dark Reaction : Calvin Cycle |
86%
From NCERT
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