What term refers to a chemical messenger that controls body processes?

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Multiple Choice

What term refers to a chemical messenger that controls body processes?

Explanation:
Hormones are signaling molecules that travel through the bloodstream to regulate growth, metabolism, reproduction, and other body processes. They’re produced by glands and act on specific target cells that have the right receptors, often at distant sites, allowing precise control of physiology even across the whole body. This is different from nutrients, which supply energy and building blocks for cells; a gland is the organ that makes secretions, and an organ is a body structure, not the signaling molecule itself. So the term that best fits “a chemical messenger that controls body processes” is hormone.

Hormones are signaling molecules that travel through the bloodstream to regulate growth, metabolism, reproduction, and other body processes. They’re produced by glands and act on specific target cells that have the right receptors, often at distant sites, allowing precise control of physiology even across the whole body. This is different from nutrients, which supply energy and building blocks for cells; a gland is the organ that makes secretions, and an organ is a body structure, not the signaling molecule itself. So the term that best fits “a chemical messenger that controls body processes” is hormone.

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