Question

An enzyme that can bind to and break apart molecules of lactose should also be able to bind: a. fatty acids. b. amino acids. c. starch. d. sucrose. e. None of the above is true; this enzyme could bind none of these.

Answer 1

Answer: Option E) None of the above is true; this enzyme could bind none of these.

Explanation:

Lactose is a dissacharide composed of glucose and galactose. Hence, the enzyme lactase break down lactose into its simple sugar constituents.

However, lactase cannot bind nor break down amino acids, starch (with only glucose units) or sucrose (with two glucose units) because their constituent molecules differ markedly from that of lactose.

Thus, the enzyme lactase could bind with none of the options provided except lactose