Prosthetic groups differ from co-enzymes, in which:

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

Which of the following contain the vitamin niacin?

1. NAD

2. NADP

3. Heme

4. Both A and B

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