Question

In an enzyme synthesis pathway, the _______ of the first enzyme is the ______ of the second enzyme.

a) Catalyst, substrate
b) Product, inhibitor
c) Substrate, product
d) Inhibitor, catalyst

Answer 1

In an enzyme synthesis pathway, the product of the first enzyme is the substrate of the second enzyme, hence the answer is 'c) Substrate, product.' Enzymes have specific active sites for substrates, and products can influence subsequent reactions through feedback inhibition.

Step-by-step explanation:

In an enzyme synthesis pathway, the product of the first enzyme is the substrate of the second enzyme. Therefore, the correct answer to the student's question would be 'c) Substrate, product.'

All enzymes have a specific active site where a substrate binds. This interaction leads to a chemical reaction and the transformation of the substrate into products, which are then released from the enzyme to potentially serve as substrates for subsequent reactions. This process can be regulated by inhibitors that impede enzyme activity and by activators that enhance it. Inhibitors can play a role in feedback inhibition, a form of regulation where the product of a pathway can act as an inhibitor to enzymes earlier in the pathway, thus controlling the metabolic flow.