Question

What is the function of a hormone?

1) To act on target cells
2) To regulate body temperature
3) To produce energy
4) To maintain blood pressure

Answer 1

Hormones are chemical-signaling molecules that act on target cells with specific receptors to regulate various physiological processes, contributing to overall homeostasis and affecting functions like growth, metabolism, and stress responses.

Step-by-step explanation:

The function of a hormone is primarily to act on target cells. Hormones are chemical-signaling molecules, such as proteins or steroids, that are secreted by endocrine cells into the bloodstream to regulate physiological processes. Specific receptors on target cells allow hormones to bind and elicit a response, which can include the regulation of metabolism, growth, development, and reproduction. Hormones also maintain homeostasis by influencing fluid and electrolyte balance, blood pressure, and responses to stress.