- 1(current)
Q. No.Read the statements given below carefully:
How many of the statements given above are correct?
| (a) | Lipids are generally water soluble. |
| (b) | Dietary proteins are the source of essential amino acids. |
| (c) | Paper made from plant pulp and cotton fibre is cellulosic in nature. |
| (d) | In a nucleic acid, the bond between the phosphate and hydroxyl group of sugar is an ester bond. |
| 1. | One | 2. | Two |
| 3. | Three | 4. | Four |
Subtopic: Nucleic Acid | Proteins | Carbohydrates | Lipids | Carbohydrates: Glycosidic Bond & Disaccharide |
75%
From NCERT
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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.
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 |
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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.
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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Arrange the following RNA in relative abundance present in a cell:
1. rRNA > tRNA > mRNA
2. rRNA > mRNA > rRNA
3. tRNA > rRNA > mRNA
4. mRNA > rRNA > tRNA
| tRNA, mRNA, rRNA |
2. rRNA > mRNA > rRNA
3. tRNA > rRNA > mRNA
4. mRNA > rRNA > tRNA
Subtopic: Nucleic Acid |
54%
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