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Q. No.Among the following, reducing sugar is:
1. Galactose
2. Gluconic acid
3. β-methyl galactoside
4. Sucrose
Subtopic: Polysaccharides & their Importance |
70%
From NCERT
AIPMT - 2002
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A compound that gives a positive Fehling solution test is:
| 1. | Sucrose | 2. | Glucose |
| 3. | Fats | 4. | Protein |
Subtopic: Polysaccharides & their Importance |
85%
From NCERT
AIPMT - 2001
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Which is the correct statement among the following?
| 1. | Starch is a polymer of α-glucose |
| 2. | Amylose is a component of cellulose |
| 3. | Proteins are composed of only one type of amino acid |
| 4. | In the cyclic structure of fructose, there are four carbons and one oxygen atom |
Subtopic: Polysaccharides & their Importance |
62%
From NCERT
AIPMT - 2001
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Reducing sugars are -
| 1. | Carbohydrates that reduce Fehling’s solution and Tollen’s reagent. |
| 2. | Carbohydrates that reduce only Tollen’s reagent. |
| 3. | Carbohydrates that reduce only Fehling’s solution . |
| 4. | Carbohydrates that reduce HI |
Subtopic: Carbohydrates - Classification & D-L configuration |
92%
From NCERT
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The term glycosidic linkage means :
| 1. | Two monosaccharide units bonded by an oxygen atom. |
| 2. | Two monosaccharide units bonded by a sulphur atom. |
| 3. | Two peptide units bonded by an oxygen atom. |
| 4. | Two peptide units bonded by an hydrogen atom. |
Subtopic: Carbohydrates - Classification & D-L configuration |
82%
From NCERT
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The secondary structure of protein is represented by:
| 1. | α-helix structure | 2. | β-pleated sheet structure |
| 3. | Both 1 and 2 | 4. | None of the above |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
88%
From NCERT
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α-helix structure of proteins is stabilized by :
| 1. | H-bonds formed between the −SH and C=O group. |
| 2. | H-bonds formed between the −NH and C=O group. |
| 3. | Ionic bonds formed between the −SH and C=O group. |
| 4. | Ionic bonds formed between the −NH and C=O group. |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
85%
From NCERT
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Amino acids exhibit amphoteric behavior as -
1. They can act both as an acid and as a base.
2. They can act only as an acid but not as a base.
3. They can act only as a base but not an acid.
4. None of the above.
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
95%
From NCERT
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The denaturation of proteins indicates -
| 1. | The primary structure of a protein is destroyed and the enzyme loses it's activity. |
| 2. | The primary structure of a protein is destroyed and the enzyme enhances it's activity. |
| 3. | The secondary and tertiary structures of a protein are destroyed and the enzyme loses it's activity. |
| 4. | The secondary and tertiary structures of a protein are destroyed and the enzyme enhances it's activity. |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
85%
From NCERT
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A nucleoside is different from a nucleotide as:
| Nucleoside | Nucleotide | |
| 1. | Sugar, Protein | Sugar, Protein, Phosphoric acid |
| 2. | Fatty acid, Base | Fatty acid, Base, Phosphoric acid |
| 3. | Sugar, Base | Sugar, Base, Phosphoric acid |
| 4. | Sugar, Base, Phosphoric acid | Sugar, Base |
Subtopic: DNA, RNA & Metal Ions |
78%
From NCERT
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