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Q. No.Among the given amino acids, Lysine ; Methionine; Glutamic acid; Threonine; Arginine; Cysteine; Tyrosine; Isoleucine, the total number of \(\alpha\)-amino acids containing sulphur is:
1. 5
2. 1
3. 2
4. 6
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
78%
From NCERT
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The force which does not stabilize secondary and tertiary protein is:
| 1. | H–H linkage | 2. | S–S linkage |
| 3. | Van Der Waal’s Force | 4. | Hydrogen bonding |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
53%
From NCERT
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In DNA, the linkages between different nitrogenous bases are:
1. Phosphate linkages
2. H-bonding
3. Glycosidic linkages
4. Peptide linkages
1. Phosphate linkages
2. H-bonding
3. Glycosidic linkages
4. Peptide linkages
Subtopic: DNA, RNA & Metal Ions |
71%
From NCERT
NEET - 2013
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Match List I with List II:
Select the correct options:
1. i ‐ A, ii ‐ B, iii ‐ C, iv ‐ D
2. i ‐ B, ii ‐ A, iii ‐ C, iv ‐ D
3. i ‐ C, ii ‐ D, iii ‐ A, iv ‐ B
4. i ‐ D, ii ‐ A, iii ‐ B, iv ‐ C
| List I (Vitamins) |
List II (Deficiency Diseases) |
||
| i. | Vitamin B12 | a. | Beri Beri |
| ii. | Vitamin B1 | b. | Cheilosis |
| iii. | Vitamin B2 | c. | Convulsions |
| iv. | Vitamin B6 | d. | Pernicious anemia |
1. i ‐ A, ii ‐ B, iii ‐ C, iv ‐ D
2. i ‐ B, ii ‐ A, iii ‐ C, iv ‐ D
3. i ‐ C, ii ‐ D, iii ‐ A, iv ‐ B
4. i ‐ D, ii ‐ A, iii ‐ B, iv ‐ C
Subtopic: Vitamins, Hormones & Enzymes |
89%
From NCERT
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Identify the anomeric carbon in the given structure of \(\alpha-D-\) glucopyranose:
| 1. | C1 | 2. | C2 and C3 |
| 3. | C4 and C5 | 4. | C6 |
Subtopic: Carbohydrates - Classification & D-L configuration |
81%
From NCERT
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The total number of chiral carbons/centers in \(\beta - D- \) ribose are:
1. Three
2. Four
3. Five
4. Two
1. Three
2. Four
3. Five
4. Two
Subtopic: DNA, RNA & Metal Ions |
61%
From NCERT
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Subtopic: Carbohydrates - Classification & D-L configuration |
88%
From NCERT
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The incorrect statement about the denaturation of proteins is:
| 1. | It results due to change of temperature and pH. |
| 2. | It results in the loss of biological activity of proteins. |
| 3. | A protein is formed from amino acids linked by peptide bonds. |
| 4. | Uncoiling of the helical structure takes place. |
Subtopic: Denaturation of Proteins & Chemical Properties |
68%
From NCERT
NEET - 2022
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Subtopic: Carbohydrates - Classification & D-L configuration |
70%
From NCERT
NEET - 2022
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When 10 units of monosaccharides are condensed to form oligosaccharides, the number of water molecules eliminated are:
| 1. | 10 | 2. | 9 |
| 3. | 8 | 4. | 7 |
Subtopic: Polysaccharides & their Importance |
84%
From NCERT
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