- 1(current)
Q. No.| Assertion (A): | Co-enzymes are inorganic compounds that bind tightly with the apoenzyme to form a holoenzyme. |
| Reason (R): | Co-enzymes and prosthetic groups are cofactors. |
| 1. | (A) is False but (R) is True. |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
Subtopic: Â Enzyme Cofactors |
 72%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Match the entries in column I and column II. Which one of the following choices is correct?
1. a-3, b-1, c-4, d-2
2. a-4, b-3, c-1, d-2
3. a-2, b-1, c-3, d-4
4. a-4, b-1, c-3, d-2
| Column I | Column II | ||
| (a) | Haem | 1. | Metallic Cofactor |
| (b) | NAD | 2. | Vitamin |
| (c) | Zinc | 3. | Coenzyme |
| (d) | Niacin | 4. | Prosthetic group |
1. a-3, b-1, c-4, d-2
2. a-4, b-3, c-1, d-2
3. a-2, b-1, c-3, d-4
4. a-4, b-1, c-3, d-2
Subtopic: Â Enzyme Cofactors |
 91%
From NCERT
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 357725
Hints
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 357725
Assertion (A): Co-enzyme is a non-protein group without which certain enzymes are inactive or incomplete.
Reason (R): Coenzymes not only provide a point of attachment of the chemical group being transformed but also influence the properties of the group.
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. Both (A) and (R) are false.
Reason (R): Coenzymes not only provide a point of attachment of the chemical group being transformed but also influence the properties of the group.
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. Both (A) and (R) are false.
Subtopic: Â Enzyme Cofactors |
 64%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
| Assertion (A): | The protein part of enzyme is called apoenzyme. |
| Reason (R): | Zinc acts as prosthetic group of the enzyme carboxypeptidase. |
| 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. | Both (A) and (R) are false. |
Subtopic: Â Enzyme Cofactors |
 58%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Match the columns:
1. A = iii, B = i, C = iv, D = ii
2. A - ii, B = i, C = iv, D = iii
3. A = iii, B = i, C = ii, D = iv
4. A = i, B = iv, C = iii, D = ii
| Column-I | Column-II |
| A. Cytochrome oxidase | i. Mg2+ |
| B. Hexokinase | ii. Zn2+ |
| C. Nitrate reductase | iii. Fe2+ and Cu2+ |
| D. Alcohol dehydrogenase | iv. Mo |
2. A - ii, B = i, C = iv, D = iii
3. A = iii, B = i, C = ii, D = iv
4. A = i, B = iv, C = iii, D = ii
Subtopic: Â Enzyme Cofactors |
 71%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.