True or False: In hormone systems, negative feedback occurs when the presence of a hormone inhibits release of the hormone.

How do steroid hormones differ from polypeptide hormones and most amino-acid-derived hormones?

a. Steroid hormones are lipid soluble and cross plasma membranes readily.

b. Polypeptide and amino-acid-derived hormones are longer-lived in the bloodstream and thus exert greater signal amplification.

c. Polypeptide hormones are the most structurally complex and induce permanent changes in target cells.

d. Only steroid hormones bind to receptors in the plasma membrane.

What is a hormone-response element?

a. A receptor for a steroid hormone

b. A receptor for a polypeptide hormone

c. A segment of DNA where a hormone–receptor complex binds

d. An enzyme that is activated in response to hormone binding and produces a second messenger

Which of the following assertions regarding hormones is correct? Select True or False for each statement.

T/F Growth and metamorphosis are controlled by hormones.

T/F Cortisol stimulates the production of ACTH.

T/F Hormones produced by the hypothalamus are considered neurohormones.

T/F Hormonal changes during puberty and pregnancy are forms of endocrine disruption.

Compare and contrast the modes of action of lipid-soluble and water-soluble hormones.

Why is the observation that one hormone may bind to more than one type of receptor important?

Compare and contrast the structure and function of the anterior and posterior pituitary glands.