Question

The reaction rate of salivary amylase on starch decreases as the concentration of chloride ions is reduced. Which of the following describes the role of the chloride ions? 

(a) allosteric inhibitors 

(b) co-enzymes 

(c) co-factors 

(d) competitive inhibitors

Answer 1

Correct option: (c) co-factors

Explanation:

Many enzymes requires a non-protein component for activity. These components are known as co-factors, which may be metal ions or organic in nature. The metal ions may be actually bound to the substrate rather than the enzyme.