Which of the following statements does NOT describe part of the MAP kinase pathway?
A)A receptor kinase is activated by binding to a growth factor, resulting in the rapid movement of ions into the cell.
B)The activated receptor kinase dimer activates the Ras protein to bind to GTP.
C)The activated Ras protein activates protein kinases in the signal transduction pathway.
D)A series of protein kinases amplify the signal to the nucleus, where genes responsible for cell division are turned on.
E)A phosphatase terminates the cellular response.

Question

Quizplus · Accepted Answer

The statement "resulting in the rapid movement of ions into the cell" does not describe part of the MAP kinase pathway. The activation of the receptor kinase leads to the activation of Ras, which activates a series of protein kinases ultimately resulting in the activation of genes responsible for cell division. The pathway does involve the activation of protein kinases and the termination of the cellular response by a phosphatase, but there is no mention of rapid movement of ions into the cell.

Which of the Following Statements Does NOT Describe Part of the MAP