Select Chapter Topics:
Q. No.
Assertion (A):
Adenine cannot pair with cytosine.
Reason (R):
Adenine specifically forms hydrogen bonds with guanine whereas cytosine forms hydrogen bond with thymine.
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: Nucleic Acid | Nucleic Acid: Nucleotides |
Level 3: 35%-60%
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: 361931
Hints
| 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. |
Subtopic: Enzyme Cofactors |
63%
Level 2: 60%+
Hints
| Assertion (A): | Competitive inhibitor is also called substrate analogue. |
| Reason (R): | It resembles the enzymes in structure. |
| 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: Factors Affecting Enzyme Catalysis Reaction |
50%
Level 3: 35%-60%
Hints
| Assertion (A): | Enzymes lower down the activation energy of the reactant molecule to make its transition into product easier. |
| Reason (R): | Enzymes are highly substrate specific catalysts. |
| 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: Enzymes | Enzyme Catalysis | Factors Affecting Enzyme Catalysis Reaction | Properties of Enzymes | Mechanism of Enzymes | Enzyme Introduction |
80%
Level 1: 80%+
Hints
Assertion (A): All the proteinaceous enzymes have a 3-D structure.
Reason (R): The secondary structure of protein is according to amino acid present inside the polypeptides.
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): The secondary structure of protein is according to amino acid present inside the polypeptides.
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: Element Analysis | Enzyme Introduction |
50%
Level 3: 35%-60%
Hints
Assertion (A): Glutamine contains amide group.
Reason (R): Isoelectric point of glutamine is 7.
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): Isoelectric point of glutamine is 7.
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: Amino Acids | Proteins |
Level 3: 35%-60%
Hints
| Assertion (A): | Starch is a polymer of glucose. |
| Reason (R): | It is made of several glucose units. |
| 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: Carbohydrates | Carbohydrates: Starch & Glycogen |
88%
Level 1: 80%+
Hints
| Assertion (A): | Keratin sulphate consists of acetyl glucosamine, galactose and sulphuric acid. |
| Reason (R): | Keratin provides strength and flexibility to skin and cornea. |
| 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: Proteins |
61%
Level 2: 60%+
Hints
Assertion (A): Glycine is a neutral amino acid.
Reason (R): Glycine contains one amino group and one carboxyl 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): Glycine contains one amino group and one carboxyl 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: Amino Acids | Different Amino Acids |
74%
Level 2: 60%+
Hints
| Assertion (A): | An example of non-competitive inhibitor is cyanide. |
| Reason (R): | Cyanide kills animals by inhibiting cytochrome oxidase. |
| 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: Enzyme Inhibition: Introduction | Enzyme Inhibition | Properties of Enzymes |
Level 3: 35%-60%
Hints
Select Chapter Topics:
© 2025 GoodEd Technologies Pvt. Ltd.