How does a protein kinase cascade amplify an intercellular signal?
A) Protein kinase molecules open cell junctions,amplifying the intercellular signal.
B) The activated G protein binds and activates a second protein,amplifying the signal.
C) Nitric oxide opens cell channels,which allows protein kinase molecules to move quickly from cell to cell.
D) Second messengers create shortcuts that create multiple cascades.
E) Sequential activation of protein kinases can lead to the activation of thousands of effector proteins.

Question

Quizplus · Accepted Answer

Sequential activation of protein kinases can lead to the activation of thousands of effector proteins, which amplifies the intercellular signal by increasing the number of downstream targets that are affected by the original signal. This creates a cascade effect as each kinase activates the next in line, leading to exponential amplification of the signal.

How Does a Protein Kinase Cascade Amplify an Intercellular Signal