The non protein constituent present in many enzymes is called:

What is the co-factor for the proteolytic enzyme, carboxypeptidase?

Most of the coenzymes contain:

The metal ion that acts as a co-factor for both alcohol dehydrogenase and carbonic anhydrase is:

Consider the following two statements regarding enzyme action:

Of the above statements:
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct

Consider the following enzymes:
I. Catalase
II. Peroxidase
III. Carboxypeptidase
Which of these enzymes require haem as a co-factor for their activity?