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Q. No.Lactose is a disaccharide composed of:
1.
\(\alpha - D-\)Glucose and \(\beta-D-\)Galactose
2.
\(\beta-D-\)Glucose and \(\beta-D-\)Galactose
3.
\(\beta - D-\)Glucose and \(\alpha-D-\)Galactose
4.
\(\alpha - D-\)Glucose and \(\alpha-D-\)Galactose
Subtopic: Polysaccharides & their Importance |
63%
From NCERT
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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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Subtopic: Carbohydrates - Classification & D-L configuration |
70%
From NCERT
NEET - 2022
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NEET 2025 - Target Batch
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NEET 2025 - Target Batch
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 |
88%
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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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 correct statement among the following is:
| 1. | Melting points and solubility in the water of amino acids are higher than haloacids. |
| 2. | Melting points and solubility in water of halo acids are higher than amino acids. |
| 3. | Both amino acids and haloacids have comparable melting point. |
| 4. | None of the above |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
71%
From NCERT
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NEET 2025 - Target Batch
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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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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
1. 5
2. 1
3. 2
4. 6
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
78%
From NCERT
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