Enzyme Cofactors
High-Yield Trend
Questions 8 MCQs
An organic substance bound to an enzyme and essential for its activity is called:
| 1. | coenzyme | 2. | holoenzyme |
| 3. | apoenzyme | 4. | isoemzyme |
Which one of the following is a fat-soluble vitamin and its related deficiency disease?
| 1. | Ascorbic acid - Scurvy |
| 2. | Retinol - Xerophthalmia |
| 3. | Cobalamine - Beri-Beri |
| 4. | Calciferol - Pellagra |
The essential chemical components of many coenzymes are:
1. Nucleic acid
2. Carbohydrates
3. Vitamins
4. Proteins
Which one of the following statements is correct with reference to enzymes?
1. Holoenzyme= Apoenzyme+Coenzyme
2. Coenzyme= Apoenzyme+Holoenzyme
3. Holoenzyme= Coenzyme+ CO-factor
4. Apoenzyme=Holoenzyme+Coenzyme
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
1. Niacin
2. Flavin
3. Haem
4. Zinc
| 1. | Apoenzyme | 2. | Prosthetic group |
| 3. | Cofactor | 4. | Coenzyme |
1. Succinate dehydrogenase
2. Catalase
3. RuBisCo
4. Carbonic anhydrase
Preparing Enzyme Cofactors for NEET
Enzyme Cofactors is a specific sub-topic that frequently appears in the NEET examination. Understanding the underlying principles and practicing targeted questions is key to mastering this concept.
The questions compiled above are previous year questions (PYQs) directly related to Enzyme Cofactors. Practicing these specific questions helps you understand the difficulty level and the examiner's approach to this topic.
Topic Frequently Asked Questions
Is Enzyme Cofactors a high-weightage topic?
You can refer to the priority and consistency badges at the top of this page. High priority topics should be thoroughly revised multiple times before the exam.
Should I memorize the solutions?
No, it is highly recommended to understand the core concept and methodology behind each solution rather than memorizing them, as exact questions are rarely repeated, but the concepts definitely are.