Exam 28: Chemical Messengers: Hormones, neurotransmitters, and Drugs

Which descriptions are true of hormones? I.produced by the nervous system II.transported in the blood stream III.interact with any cell having the appropriate receptor IV.act within 1 second or less after release V.effects may last several hours or days

The molecule or molecules that interacts with a hormone or other biologically active molecule to initiate a cellular response is called a(n)

Describe in detail the two ways in which a hormone can deliver its message to a target cell.What characteristics of the hormone determine which mechanism is used?

Match the following. -hormone

One example of an amino acid derivative that acts as both a hormone and a neurotransmitter is

Which of the following hormones are involved in counteracting inflammation?

The major chemical structures of hormones include

Match the following. -target

A drug that behaves as an antagonist affects a receptor cell by

An agonist that in low doses is a stimulant used in the manufacturing of tobacco is

Monoamine oxidase inhibitors are good antidepressants because they

Depression is known to be caused by a deficiency of

Which of the following hormones must deliver its signal using the "second-messenger" mechanism?

Chemical messengers that carry signals between neurons are

Which statement regarding polypeptide hormones is incorrect?

Chemical messengers that are produced by the endocrine system and circulate in the bloodstream are

Which type of hormone actually enters the target cell?

Which of the following hormones are involved in the retention of water and blood pressure?

Mineralocorticoids are a specific type of steroid whose function is to

Vasopressin is an example of which type of hormone?