The protein portion of an enzyme is called:
1. Apoenzyme 2. Prosthetic group
3. Cofactor 4. Coenzyme
Subtopic:  Enzyme Cofactors |
 69%
From NCERT
NEET - 2025
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Which one of the following enzymes contains 'Haem' as the prosthetic group?
1. Succinate dehydrogenase
2. Catalase
3. RuBisCo
4. Carbonic anhydrase
Subtopic:  Enzyme Cofactors |
From NCERT
NEET - 2025
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The cofactor of the enzyme carboxypeptidase is:
1. Niacin
2. Flavin
3. Haem
4. Zinc
Subtopic:  Enzyme Cofactors |
 70%
From NCERT
NEET - 2024
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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
NEET - 2024
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In the enzyme which catalyses the breakdown of:
\(\mathrm{H}_2 \mathrm{O}_2 \rightarrow \mathrm{H}_2 \mathrm{O}+\mathrm{O}_2\)
the prosthetic group is :
1. Nicotinamide adenine dinucleotide
2. Haem
3. Zinc
4. Niacin
Subtopic:  Enzyme Cofactors |
 68%
From NCERT
NEET - 2022
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Consider the following statements:

A:  A coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group
B: A complete catalytic enzyme with its bound prosthetic group is called apoenzyme


Select the correct option

1. (A) is false but (B) is true

2. Both (A) and (B) are true

3. (A) is true but (B) is false

4. Both (A) and (B) are false

Subtopic:  Enzyme Cofactors |
From NCERT
NEET - 2019
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Prosthetic groups differ from co-enzymes, in which:

1. they require metal ions for their activity.
2. they (prosthetic groups) are tightly bound to apoenzymes.
3. their association with apoenzymes is transient.
4. they can serve as co-factors in a number of enzyme-catalyzed reactions.
Subtopic:  Enzyme Cofactors |
 81%
From NCERT
NEET - 2019
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