Q. No.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. |
Which of the following are co-factors?
1. Co-enzymes
2. Metal ions
3. Posthetic groups
4. All of these
Which of the following cofactor is essential for the proteolytic enzyme carboxypeptidase?
1. Zinc
2. Copper
3. Magnesium
4. Iron
Most enzymes consist of two parts i.e.
1. Holoenzyme and prosthetic group
2. Enzyme and coenzyme
3. Apoenzyme and enzyme
4. Apoenzyme and cofactor
The protein constituent of the enzymes are called
1. Apoenzyme
2. Prosthetic group
3. Co-enzymes
4. Holoenzyme
| I: | Small organic molecules |
| II: | Difficult to remove without denaturing the enzyme |
| III: | Haem is an example |
The above characters are of which of the following co-factors of an enzyme?
| 1. | Metal ions | 2. | Prosthetic groups |
| 3. | Co-enzymes | 4. | Apoenzymes |
Which of the following is an organic compound?
1. Prosthetic group
2. Coenzymes
3. Metal ions
4. Both A and B
An organic substance bound to an enzyme and essential for its activity is called:
| 1. | coenzyme |
| 2. | holoenzyme |
| 3. | apoenzyme |
| 4. | isoenzyme |
The essential chemical components of many coenzymes are:
1. Nucleic acid
2. Carbohydrates
3. Vitamins
4. Proteins
© 2025 GoodEd Technologies Pvt. Ltd.