Question

12. Explain what takes place in each step of the diagram (Each arrow represents a step in the pathway!

Answer 1

The enzyme and substrates first join with each other to form a enzyme - substrate complex which then is acted upon by the enzyme to form the product which then detaches from the enzyme.

Explanation:

This is the lock and key hypothesis of the enzyme which states how the enzyme and the substrate specificity takes place. Here it explained that in the first step, the substrate attaches with the enzyme in the specific site that has the complementary structure to that of the substrate, or it has some groups which can temporarily bond with the substrate with the enzyme. This then forms the transient enzyme - substrate complex. This then helps the enzyme to act on the substrate. As the action gets over and the product is formed the product separates from the enzyme.