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Q. No.
Subtopic: Carbohydrates - Classification & D-L configuration |
81%
Level 1: 80%+
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Given below are two statements:
| Assertion (A): | Purine bases present in DNA are adenine and guanine. |
| Reason (R): | The base thymine is present in RNA, while base uracil is present in DNA. |
| 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. | (A) is False, but (R) is True. |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
88%
Level 1: 80%+
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Match List-II with List-II :
Choose the correct answer from the options given below:
1. A-I, B-II, C-III, D-IV
2. A-IV, B-III, C-II, D-I
3. A-I, B-IV, C-II, D-III
4. A-IV, B-I, C-II, D-III
| List-I (Vitamins) | List-II (Deficiency/other name/ property) | ||
| A. | Vitamin K | I. | RBC deficient in haemoglobin |
| B. | Vitamin \(\text{B}_{12}\) | II. | Bleeding gums |
| C. | Vitamin C | III. | Thiamine |
| D. | Vitamin \(\text{B}_1\) | IV. | Fat soluble |
1. A-I, B-II, C-III, D-IV
2. A-IV, B-III, C-II, D-I
3. A-I, B-IV, C-II, D-III
4. A-IV, B-I, C-II, D-III
Subtopic: Vitamins, Hormones & Enzymes |
79%
Level 2: 60%+
NEET - 2024
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Given below are two statements:
| Assertion (A): | DNA has a double-helix structure and contains thymine base. |
| Reason (R): | The double helix provides structural stability but does not protect the genetic code. |
| 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: DNA, RNA & Metal Ions |
73%
Level 2: 60%+
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Which of the following statements is incorrect?
| 1. | Enzymes are biocatalysts |
| 2. | Enzymes are not specific |
| 3. | Enzymes are globular proteins |
| 4. | Oxidase enzymes catalyse the oxidation of C-N and C-O bonds |
Subtopic: Vitamins, Hormones & Enzymes |
88%
Level 1: 80%+
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Which of the following is an essential amino acid?
| 1. | Alanine | 2. | Valine |
| 3. | Aspartic acid | 4. | Serine |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
78%
Level 2: 60%+
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Which of the following statements is incorrect?
1. Amylopectin is a branched polymer of \(\alpha-\)glucose.
2. Cellulose is a linear polymer of \(\beta-\)glucose.
3. Glycogen is the food reserve of plants.
4. All proteins are polymers of \(\alpha-\) amino acids.
1. Amylopectin is a branched polymer of \(\alpha-\)glucose.
2. Cellulose is a linear polymer of \(\beta-\)glucose.
3. Glycogen is the food reserve of plants.
4. All proteins are polymers of \(\alpha-\) amino acids.
Subtopic: Polysaccharides & their Importance |
80%
Level 1: 80%+
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Match the compounds in Column-I with their corresponding common names in Column-II:
Options:
1. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
2. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
3. (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
4. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
| Column-I (Compounds) |
Column-II (Common name) |
||
| (a) | Sucrose | (i) | Malt sugar |
| (b) | Lactose | (ii) | Cane sugar |
| (c) | Fructose | (iii) | Milk sugar |
| (d) | Maltose | (iv) | Fruit sugar |
1. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
2. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
3. (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
4. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
Subtopic: Carbohydrates - Classification & D-L configuration |
89%
Level 1: 80%+
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Match Column-I with Column-II and mark the correct option:
1. (A) → (ii), (B) → (i), (C) → (iii), (D) → (iv)
2. (A) → (iv), (B) → (i), (C) → (ii), (D) → (iii)
3. (A) → (iii), (B) → (iv), (C) → (i), (D) → (ii)
4. (A) → (i), (B) → (iii), (C) → (iv), (D) → (ii)
| Column-I | Column-II | ||
| (A) | Peptide linkage | (i) | Inversion |
| (B) | Nucleic acid | (ii) | Polysaccharide |
| (C) | Hydrolysis of cane sugar | (iii) | Proteins |
| (D) | Starch | (iv) | Nucleotides |
1. (A) → (ii), (B) → (i), (C) → (iii), (D) → (iv)
2. (A) → (iv), (B) → (i), (C) → (ii), (D) → (iii)
3. (A) → (iii), (B) → (iv), (C) → (i), (D) → (ii)
4. (A) → (i), (B) → (iii), (C) → (iv), (D) → (ii)
Subtopic: Carbohydrates - Classification & D-L configuration | α - Amino Acids, Peptide Bond, Proteins & Structure |
93%
Level 1: 80%+
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Match the biological molecules from Column-I with their respective characteristics/examples from Column-II and choose the correct option:
1. (A) → (iv), (B) → (iii), (C) → (ii), (D) → (i)
2. (A) → (iii), (B) → (ii), (C) → (iv), (D) → (i)
3. (A) → (ii), (B) → (iii), (C) → (iv), (D) → (i)
4. (A) → (i), (B) → (ii), (C) → (iii), (D) → (iv)
| Column-I (Biological Molecules) |
Column-II (Characteristics/Examples) |
||
| (A) | Pentose sugar in DNA | (i) | Ascorbic acid |
| (B) | RNA | (ii) | Globular protein |
| (C) | Albumin | (iii) | Uracil |
| (D) | Vitamin | (iv) | Furanose structure |
1. (A) → (iv), (B) → (iii), (C) → (ii), (D) → (i)
2. (A) → (iii), (B) → (ii), (C) → (iv), (D) → (i)
3. (A) → (ii), (B) → (iii), (C) → (iv), (D) → (i)
4. (A) → (i), (B) → (ii), (C) → (iii), (D) → (iv)
Subtopic: Carbohydrates - Classification & D-L configuration | α - Amino Acids, Peptide Bond, Proteins & Structure | Vitamins, Hormones & Enzymes |
91%
Level 1: 80%+
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