Question

If the concentration of amino acid transport protein is increased, the transport affinity Kt of L-alanine will:

A. level off rapidly.
B. decrease.
C. not change.
D. quickly reach the maximum value.

Answer 1

Increasing the concentration of amino acid transport protein will decrease the transport affinity (Kt) of L-alanine. The option (B) is correct.

Step-by-step explanation:

Increasing the concentration of amino acid transport protein will decrease the transport affinity (Kt) of L-alanine. When the concentration of the transport protein is increased, more transporters are available to bind with the amino acid.

As a result, the affinity of the transport protein for the amino acid decreases, leading to a decrease in the transport affinity (Kt). This means that it will be more difficult for L-alanine to be transported into the cell. Therefore, the correct answer is B. decrease.