Q. No.The and photosynthesis pathways are so called because the initial carbon fixation product in them are respectively:
| 1. | pyruvate; malate |
| 2. | malate; pyruvate |
| 3. | 3-phosphoglycerate; oxaloacetic acid |
| 4. | glyceraldehyde 3-phosphate; phospho-enol-pyruvate (PEP) |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
84%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
91%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The first stable product of CO2 fixation in sorghum is:
| 1. | Succinic acid | 2. | Phosphoglyceric acid |
| 3. | Pyruvic acid | 4. | Oxaloacetic acid |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
90%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Select the statements that will be true for C4 plants:
| I: | Calvin cycle takes place in Bundle sheath cells |
| II: | Number of carbon atoms in the primary carbon dioxide acceptor is 5 |
| III: | Initial carboxylation reaction occurs in mesophyll cells |
| IV: | Primary carbon dioxide fixation product is oxaloacetic acid |
| 1. | Only I, II and III | 2. | Only I, III and IV |
| 3. | Only II, III and IV | 4. | I, II, III and IV |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
74%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Regarding Kranz anatomy, the bundle sheath cells:
| 1. | are rich in an enzyme Ribulose bisphosphate carboxylase-oxygenase (RuBisCO) but lack PEPcase. |
| 2. | are rich in enzymes Ribulose bisphosphate carboxylase-oxygenase (RuBisCO) and PEPcase. |
| 3. | lack enzymes Ribulose bisphosphate carboxylase-oxygenase (RuBisCO) and PEPcase. |
| 4. | lack enzyme Ribulose bisphosphate carboxylase-oxygenase (RuBisCO) but are rich in PEPcase. |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
80%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The bundle sheath cells in Kranz anatomy arrangement:
| 1. | may form several layers around the vascular bundles |
| 2. | are characterised by having only a few number of chloroplasts |
| 3. | have thin walls freely permeable to gaseous exchange |
| 4. | have large intercellular spaces. |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
| Assertion (A): | Kranz anatomy is crucial for the efficiency of C4 plants. |
| Reason (R): | Kranz anatomy allows for a higher concentration of carbon dioxide at the site of the Calvin cycle. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
81%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
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: C4 Cycle (Hatch & Slack Pathway) |
63%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
C4 carbon fixation, one of three known photosynthetic processes of carbon fixation in plants, is also called as:
1. Calvin Benson cycle
2. Tricarboxylic acid cycle
3. Hatch–Slack pathway
4. Embden-Meyerhof-Parnas pathway
1. Calvin Benson cycle
2. Tricarboxylic acid cycle
3. Hatch–Slack pathway
4. Embden-Meyerhof-Parnas pathway
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
92%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The primary acceptor in plants is:
1. RuBP in mesophyll cells
2. RuBP in bundle sheath cells
3. PEP in mesophyll cells
4. PEP in bundle sheath cells
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
82%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
© 2024 GoodEd Technologies Pvt. Ltd.