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Q. No.Subtopic: Enzymes |
78%
Level 2: 60%+
NEET - 2016
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The two functional groups characteristic of sugars are:
| 1. | Hydroxyl and methyl | 2. | Carbonyl and methyl |
| 3. | Carbonyl and phosphate | 4. | Carbonyl and hydroxyl |
Subtopic: Carbohydrates: Introduction |
64%
Level 2: 60%+
NEET - 2018
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Which of the following describes the given graph correctly?
| 1. | Endothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme |
| 2. | Exothermic reaction with energy A in the presence of enzyme and B in the absence of enzyme |
| 3. | Endothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme |
| 4. | Exothermic reaction with energy A in the absence of enzyme and B in the presence of enzyme |
Subtopic: Mechanism of Enzymes |
82%
Level 1: 80%+
NEET - 2016
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Which one of the following statements is incorrect?
1. Cellulose is a polysaccharide
2. Uracil is a pyrimidine
3. Glycine is a sulphur-containing amino acid
4. Sucrose is a disaccharide
1. Cellulose is a polysaccharide
2. Uracil is a pyrimidine
3. Glycine is a sulphur-containing amino acid
4. Sucrose is a disaccharide
Subtopic: Different Amino Acids |
85%
Level 1: 80%+
NEET - 2016
Hints
Which of the following biomolecules have a phosphodiester bond?
| 1. | Fatty acids in a diglyceride |
| 2. | Monosaccharides in a polysaccharide |
| 3. | Amino acids in a polypeptide |
| 4. | Nucleic acids in a nucleotide |
Subtopic: Nucleic Acid |
80%
Level 1: 80%+
NEET - 2015
Hints
A phosphoglyceride is always made up of:
| 1. | only an unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached. |
| 2. | a saturated or unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached. |
| 3. | a saturated or unsaturated fatty acid esterified to a phosphate group which is also attached to a glycerol molecule. |
| 4. | only a saturated fatty acid is esterified to a glycerol molecule to which a phosphate group is also attached. |
Subtopic: Lipids: Glycerolipids, Phospholipids & Glycerol |
64%
Level 2: 60%+
AIPMT - 2013
Hints
Select the option which is not correct with respect to enzyme action:
| 1. | Substrate binds with the enzyme at its active site. |
| 2. | Addition of a lot of succinate does not reverse the inhibition of succinic dehydrogenase by malonate |
| 3. | A non-competitive inhibitor binds the enzyme at a site distinct from that which binds the substrate |
| 4. | Malonate is a competitive inhibitor of succinic dehydrogenase |
Subtopic: Enzyme Inhibition: Introduction |
74%
Level 2: 60%+
AIPMT - 2014
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The essential chemical components of many coenzymes are:
1. Nucleic acid
2. Carbohydrates
3. Vitamins
4. Proteins
Subtopic: Enzyme Cofactors |
72%
Level 2: 60%+
AIPMT - 2013
Hints
Transition state structure of the substrate formed during an enzymatic reaction is:
| 1. | permanent but unstable |
| 2. | transient and unstable |
| 3. | permanent and stable |
| 4. | transient but stable |
Subtopic: Mechanism of Enzymes |
84%
Level 1: 80%+
AIPMT - 2013
Hints
Macro molecule chitin is:
1. Phosphorus containing saccharide
2. Sulphur containing polysaccharide
3. Simple polysaccharide
4. Nitrogen-containing polysaccharide
Subtopic: Carbohydrates: Cellulose, Chitin, Inulin & Agar |
78%
Level 2: 60%+
AIPMT - 2013
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