Exemplar Problems

Question:

Describe the function of peptide hormones and provide examples.

Answer:

Peptide hormones are made of amino acids and function by binding to receptors on the surface of target cells. This binding triggers a cascade of intracellular events, usually involving secondary messengers, which ultimately lead to the specific actions of the hormone. Examples of peptide hormones include insulin, which regulates blood glucose levels, and growth hormone, which influences body growth and development.