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Q. No.
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
Assertion (A): Amino acids are called \(\alpha\)-amino acids.
Reason (R): Amino acids are organic compounds containing an amino group and an acidic group as substituents on the \(\alpha\)-carbon.
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): Amino acids are organic compounds containing an amino group and an acidic group as substituents on the \(\alpha\)-carbon.
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 | Different Amino Acids |
89%
Level 1: 80%+
Hints
Assertion (A): A protein is a heteropolymer.
Reason (R): It is a made of different types of amino acids.
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): It is a made of different types of amino acids.
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 |
94%
Level 1: 80%+
Hints
| Assertion (A): | The exoskeleton of insects is made of chitin. |
| Reason (R): | Chitin is a homopolysaccharide. |
| 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: Cellulose, Chitin, Inulin & Agar |
72%
Level 2: 60%+
Hints
| Assertion (A): | The heterocyclic compounds in nucleic acids are the nitrogenous bases. |
| Reason (R): | There are five types of nitrogenous bases which exists naturally. |
| 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 |
82%
Level 1: 80%+
Hints
| Assertion (A): | The long protein chain is folded upon itself like a hollow giving rise to the tertiary structure. |
| Reason (R): | Tertiary structure gives a 3-D form to protein. |
| 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 | Introduction to Proteins |
59%
Level 3: 35%-60%
Hints
| Assertion (A): | Most of the enzymes are proteins. |
| Reason (R): | Few enzymes are made up of RNA. |
| 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 |
76%
Level 2: 60%+
Hints
| 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: Enzyme Cofactors |
58%
Level 3: 35%-60%
Hints
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