A non-proteinaceous enzyme is:

1. lysozyme

2. ribozyme

3. ligase

4. deoxyribonuclease

Subtopic:  Enzymes |
 76%
From NCERT
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%
NEET - 2018
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Which of the following is the least likely to be involved in stabilizing the three-­dimensional folding of most proteins?

1. Hydrogen bonds 2. Electrostatic interaction
3. Hydrophobic interaction 4. Ester bonds
Subtopic:  Structural Organisation of Proteins |
NEET - 2016
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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 |
 81%
From NCERT
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
Subtopic:  Different Amino Acids |
 86%
From NCERT
NEET - 2016
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A typical fat molecule is made up of?
1. One glycerol and three fatty acid molecules
2. One glycerol and one fatty acid molecule
3. Three glycerol and three fatty acid molecules
4. Three glycerol molecules and one fatty acid molecule.
Subtopic:  Lipids: Fatty Acids |
 76%
NEET - 2016
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The chitinous exoskeleton of arthropods is formed by the polymerization of?

1. Keratine sulphate and chondroitin sulphate

2. D-glucosamine

3. N-acetyl glucosamine

4. Lipoglycans

Subtopic:  Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 85%
NEET - 2015
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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 |
 78%
From NCERT
NEET - 2015
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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%
From NCERT
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 |
 70%
From NCERT
AIPMT - 2013
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