[Campbell Biology P.276] What is the primary purpose of the elaborate enzyme cascade in the ... | Practice Question

What is the primary purpose of the elaborate enzyme cascade in the epinephrine signaling pathway shown in Figure 11.16?

  • A: To ensure that the signal can be quickly terminated.
  • B: To convert the chemical signal into an electrical signal.
  • C: To amplify the initial hormonal signal, leading to a large cellular response.
  • D: To transport the hormone deeper into the cell.

Explanation

The section 'Signal Amplification' clearly states that 'Elaborate enzyme cascades amplify the cell's response to a signal.' The pathway demonstrates how a small initial signal from one epinephrine molecule can lead to the production of a vast number of glucose 1-phosphate molecules.