[Campbell Biology P.917] Which of the following chemical compounds are mentioned as plant de... | Practice Question

Which of the following chemical compounds are mentioned as plant defenses at the molecular level, and what is their primary function?

  • A: Terpenoids; often mimic insect hormones causing premature molting.
  • B: Tannins; are phenolics that have an unpleasant taste and hinder protein digestion.
  • C: Morphine; is an alkaloid sourced from opium poppy that accumulates in laticifers.
  • D: Raphides; are chemical compounds that cause temporary swelling of the lips and throat.

Explanation

At the molecular level, plants produce chemical compounds such as terpenoids, phenolics like tannins , and alkaloids like morphine from opium poppy to deter attackers. Terpenoids mimic insect hormones, tannins have an unpleasant taste and hinder protein digestion, and morphine is an alkaloid stored in laticifers.