RuBP is:
1.
2 carbon ketose sugar
2.
2 carbon aldose sugar
3.
5 carbon ketose sugar
4.
5 carbon aldose sugar
Subtopic: Â Dark Reaction : Calvin Cycle |
 87%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Subtopic: Â C4 Cycle (Hatch & Slack Pathway) |Â C4 Plants Examples |
 83%
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
C4 plants are special. Which of the following will be true for C4 plants?
| a. | They have a special type of leaf anatomy |
| b. | They tolerate higher temperature |
| c. | They show a response to high light intensities |
| d. | They lack a process called photorespiration |
| e. | They have greater productivity of biomass |
| 1. | All except [e] |
| 2. | [b], [c] and [d] only |
| 3. | All |
| 4. | [a], [b], [d] and [e] only |
Subtopic: Â C4 Cycle (Hatch & Slack Pathway) |Â Photorespiration |
 77%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
In Hatch and Slack pathway:
1. Only I and II are correct
2. II, III and IV are incorrect
3. Only I, II and III are correct
4. I, II, III and IV are correct
| I: | The C4 acid OAA is formed in the mesophyll cells. |
| II: | Malic acid or aspartic acid are transported to the bundle sheath cells. |
| III: | C4 acids are broken down to release carbon dioxide and a 3 carbon molecule in mesophyll cells. |
| IV: | The 3 carbon molecule is transported back to the bundle sheath cell where it is converted to PEP again. |
2. II, III and IV are incorrect
3. Only I, II and III are correct
4. I, II, III and IV are correct
Subtopic: Â C4 Cycle (Hatch & Slack Pathway) |
 63%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
When the ratio, CO2 : O2 is nearly equal, RuBisCO:
1. has no affinity for oxygen
2. has a much greater affinity for carbon dioxide
3. has a much greater affinity for oxygen
4. has equal affinity for both carbon dioxide and oxygen
1. has no affinity for oxygen
2. has a much greater affinity for carbon dioxide
3. has a much greater affinity for oxygen
4. has equal affinity for both carbon dioxide and oxygen
Subtopic: Â Photorespiration |
 78%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
In the photorespiratory pathway:
I. there is no synthesis of sugars
II. there is release of carbon dioxide with the utilization of ATP
III. ATP is synthesized but NADPH is not synthesized
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. there is no synthesis of sugars
II. there is release of carbon dioxide with the utilization of ATP
III. ATP is synthesized but NADPH is not synthesized
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: Â Photorespiration |
 79%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Consider the given two statements:
| Statement I: | In C4 plants, photorespiration does not occur. |
| Statement II: | C4 plants do not have RuBisCO in any of their cells. |
| 1. | Both Statement I and Statement II are correct and Statement II explains Statement I |
| 2. | Both Statement I and Statement II are correct but Statement II does not explain Statement I |
| 3. | Statement I is correct but Statement II is incorrect |
| 4. | Statement I is incorrect but Statement II is correct |
Subtopic: Â C4 Cycle (Hatch & Slack Pathway) |
 86%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Which of the following is not correctly matched?
| C3 plant | C4 plant | ||
| 1. | Cell type in which Calvin cycle takes place | Mesophyll | Bundle sheath |
| 2. | Primary carbon dioxide acceptor | RuBP | PEP |
| 3. | Primary carbon dioxide fixation product | PGA | OAA |
| 4. | Cell type in which the initial carboxylation reaction occurs | Mesophyll | Bundle sheath |
Subtopic: Â Dark Reaction : Calvin Cycle |Â C4 Cycle (Hatch & Slack Pathway) |
 78%
From NCERT
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Hints
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Consider the given two statements:
Statement I: Despite the presence of a green leaf, optimal light and carbon dioxide conditions, the plant may not photosynthesize if the temperature is very low.
Statement II: If a chemical process is affected by more than one factor, then its rate will be determined by the factor which is nearest to its minimal value.
1. Both Statement I and Statement II are correct and Statement II explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not explain Statement I
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Statement I: Despite the presence of a green leaf, optimal light and carbon dioxide conditions, the plant may not photosynthesize if the temperature is very low.
Statement II: If a chemical process is affected by more than one factor, then its rate will be determined by the factor which is nearest to its minimal value.
1. Both Statement I and Statement II are correct and Statement II explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not explain Statement I
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Subtopic: Â Factors Affecting Photosynthesis |
 75%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Consider the given two statements:
Statement I: Except for plants in shade or in dense forests, light is rarely a limiting factor in nature.
Statement II: There is a linear relationship between incident light and carbon dioxide fixation rates at low light intensities.
1. Both Statement I and Statement II are correct and Statement II explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not explain Statement I
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Statement I: Except for plants in shade or in dense forests, light is rarely a limiting factor in nature.
Statement II: There is a linear relationship between incident light and carbon dioxide fixation rates at low light intensities.
1. Both Statement I and Statement II are correct and Statement II explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not explain Statement I
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Subtopic: Â Factors Affecting Photosynthesis |
 60%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh
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