Lecithin, a small molecular weight organic compound found in living tissues, is an example of:
1. Phospholipids
2. Glycerides
3. Carbohydrates
4. Amino acids
Subtopic:  Lipids |
 80%
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Inhibition of Succinic dehydrogenase enzyme by malonate is a classical example of:
1. Feedback inhibition
2. Competitive inhibition
3. Enzyme activation
4. Cofactor inhibition
Subtopic:  Enzyme Inhibition |
 80%
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The cofactor of the enzyme carboxypeptidase is:
1. Niacin
2. Flavin
3. Haem
4. Zinc
Subtopic:  Enzyme Cofactors |
 68%
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Match List I with List II:
List I List II
A.  GLUT-4 I. Hormone 
B.  Insulin  II. Enzyme
C.  Trypsin  III. Intercellular ground substance 
D.  Collagen  IV. Enables glucose transport into cells

Choose the correct answer from the options given below: 
1. A-I, B-II, C-III, D-IV
2. A-II, B-III, C-IV, D-I
3. A-III, B-IV, C-I, D-II
4. A-IV, B-I, C-II, D-III
Subtopic:  Proteins |
 85%
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Regarding catalytic cycle of an enzyme action, select the correct sequential steps: 
A. Substrate enzyme complex formation.
B. Free enzyme ready to bind with another substrate.
C. Release of products. 
D. Chemical bonds of the substrate broken.
E. Substrate binding to active site. 
Choose the correct answer from the options given below: 
1. A, E, B, D, C 
2. B, A, C, D, E
3. E, D, C, B, A 
4. E, A, D, C, B 
Subtopic:  Enzyme Catalysis | Factors Affecting Enzyme Catalysis Reaction | Mechanism of Enzymes |
 72%
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NEET - 2024
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Which of the following statement is incorrect about enzymes?
1. They are highly substrate specific
2. In thermophilic organisms, enzymes can catalyze reaction at high temperatures, i.e. 90°C
3. All enzymes are proteinaceous in nature
4. Some enzymes have metal ions
Subtopic:  Enzymes |
 76%
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The following can be found as a zwitter ion:
1. Fatty acid
2. Monosaccharide
3. Amino acid
4. Nucleic acid
Subtopic:  Element Analysis | Amino Acids |
 87%
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Which of the following is not a complex polysaccharide?
1. Inulin
2. Chitin
3. Glucosamine
4. N-acetyl galactosamine
Subtopic:  Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 57%
From NCERT
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Match List-I with List-II:
List-I List-II
A. Ribozyme I. Glucose transport 
B.  Lecithin II. Non-proteinaceous enzyme
C.  Glut-4 III. Lipid
D. Vitamins IV. Coenzyme

Choose the correct answer from the options given below : 
1. A-IV, B-III, C-I, D-II
2. A-IV, B-III, C-II, D-I
3. A-II, B-I, C-III, D-IV
4. A-II, B-III, C-I, D-IV
Subtopic:  Proteins | Lipids | Enzymes | Enzyme Cofactors |
 74%
From NCERT
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Match List-I with List-II
List-I List-II
A. Toxin I. Gum
B. Polymeric substance II. Concanavalin A
C. Lectin III. Ricin
D.  Drug  IV.  Vinblastin
Choose the correct answer from the options given below:
1. A-III, B-IV, C-II, D-I
2. A-II, B-IV, C-I, D-III
3. A-III, B-I, C-II, D-IV
4. A-II, B-I, C-IV, D-III
Subtopic:  Primary & Secondary Metabolites |
 87%
From NCERT
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