The enzyme cascade in liver cells amplifies the signal because

  1. cAMP is a hormone
  2. receptors are destroyed
  3. glucagon is used up
  4. each activated enzyme activates many molecules of the next enzyme
Answer

D) each activated enzyme activates many molecules of the next enzyme

Amplification by phosphorylation. AS & A Level Biology · Topic 14 Homeostasis · 14.1 Homeostasis in mammals

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