- 1(current)
Q. No.Match column I with column II and select the correct option.
1. a(ii), b(iii), c(iv), d(i)
2. a(ii), b(iv), c(iii), d(i)
3. a(iv), b(i), c(ii), d(iii)
4. a(iv), b(i), c(iii), d(ii)
| Column I | Column II | ||
| a. | Phosphate and hydroxyl group of sugar in a nucleotide | (i) | Peptide bond |
| b. | Polymer of amino acids | (ii) | Glycosidic bond |
| c. | Polysaccharides | (iii) | Hydrogen bond |
| d. | Adenine and thymine in a DNA | (iv) | Ester bond |
2. a(ii), b(iv), c(iii), d(i)
3. a(iv), b(i), c(ii), d(iii)
4. a(iv), b(i), c(iii), d(ii)
Subtopic: The DNA | Amino Acids | Zwitter ion & Peptide Bond | Carbohydrates: Glycosidic Bond & Disaccharide |
87%
Level 1: 80%+
Hints
Read the statements given below and select the option that correctly identifies them as True(T) or False(F).
a b c d
1. F T T T
2. F T F T
3. T F T T
4. T T T T
| a. | Alanine is a sulphur containing amino acid |
| b. | Tyrosine is an aromatic amino acid |
| c. | Uracil is a substituted pyrimidine found in nucleic acids containing deoxyribose sugar |
| d. | The nitrogenous bases are projected more or less perpendicular to the sugar-phosphate backbone of polynucleotide chain |
1. F T T T
2. F T F T
3. T F T T
4. T T T T
Subtopic: Amino Acids |
77%
Level 2: 60%+
Hints
The number of correct statements amongst the given statements is:
I. Amino acids are substitute methanes.
II. The R group in serine is hydroxyl-methyl.
III. Arachidonic acid has 20 carbon atoms including the carboxyl carbon.
IV. Glycerol is trihydroxypropane.
V. Lecithin is a phospholipid.
1. 2
2. 3
3. 4
4. 5
Subtopic: Amino Acids | Lipids |
75%
Level 2: 60%+
Hints
Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| Statement I: | Amino acids have a property of ionizable nature of –NH2 and –COOH groups, hence have different structures at different pH. |
| Statement II: | Amino acids can exist as Zwitterionic form at acidic and basic pH. |
| 1. | Both Statement I and Statement II are correct. |
| 2. | Both Statement I and Statement II are incorrect. |
| 3. | Statement I is correct but Statement II is incorrect. |
| 4. | Statement I is incorrect but Statement II is correct. |
Subtopic: Amino Acids |
74%
Level 2: 60%+
NEET - 2022
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): 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): 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 |
93%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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