Which statement relating to hormones is true?
A) Endocrine glands have ducts.
B) Target cells are the cells that are exposed to a hormone.
C) Exocrine glands lack ducts and secrete their products into the extracellular fluid.
D) A single endocrine gland can secrete multiple hormones.
E) Target cells that lack receptors respond to hormones.

Question

Quizplus · Accepted Answer

Endocrine glands lack ducts and secrete hormones directly into the bloodstream. Target cells are the cells that have specific receptors for a particular hormone and respond to that hormone. Exocrine glands, on the other hand, have ducts and secrete their products into some body cavity or onto the surface of the body. Finally, target cells that lack receptors for a hormone are unable to respond to that hormone. Therefore, only choice D is true.

Which Statement Relating to Hormones Is True