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Q. No.
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%
From NCERT
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| 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 |
59%
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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%
From NCERT
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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.
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 |
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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%
From NCERT
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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 |
93%
From NCERT
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| 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 |
71%
From NCERT
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| 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 |
81%
From NCERT
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| 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 |
58%
From NCERT
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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.
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%
From NCERT
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