Which of the following is not true of true hormones?

A) Each hormone can only influence target cells that contain receptors for it.
B) They are secreted by both endocrine or exocrine glands.
C) Some hormones influence the rates of chemical reactions in their target cells.
D) Some hormones regulate water and electrolyte balance.
E) All of these are true of true hormones.

True Hormones

Chemical substances produced in the body that travel through the bloodstream to signal organs and tissues to function or alter their activities.

Target Cells

Target cells refer to blood cells with a specific appearance under a microscope due to alterations in their membrane, often seen in conditions like iron deficiency anemia or thalassemia.

Receptors

Proteins on or within cells that bind to specific molecules, initiating a biological response.