Question

question 5 / 10
the enzyme lactase catalyzes the breakdown of lactose (milk sugar) to glucose and galactose. students set up a beaker with milk and lactase enzyme. which describes how the concentrations of these substrates will change?
a. the concentration of lactase will decrease, and the concentration of galactose will increase.
b. the concentration of galactose will decrease, and the concentration of glucose will increase.
c. the concentration of galactose will increase, and the concentration of lactase will remain the same.
d. the concentration of lactose will increase, and the concentration of glucose will remain the same.

Explanation:

Enzymes are biological catalysts that speed up chemical reactions without being consumed. In this case, lactase catalyzes the breakdown of lactose into glucose and galactose. As the reaction proceeds, lactose (the substrate) is converted into products (glucose and galactose). So, the concentration of lactose will decrease, and the concentrations of glucose and galactose will increase.

Answer:

A. The concentration of lactase will decrease, and the concentration of galactose will increase.