Match each term with its explanation or definition.
-a small amount of hormone allows another hormone to have its full effect
A)Synergism
B)Steroid hormone
C)Second messenger
D)Target cell
E)Up-regulation
F)Antagonism
G)Prostaglandin
H)Tropic hormone
I)Nonsteroid hormone
J)Permissiveness

Question

Quizplus · Accepted Answer

Permissiveness refers to a situation in which a small amount of one hormone allows another hormone to have its full effect.

Answer: B 
 Steroid hormones are derived from cholesterol and are able to cross the plasma membrane of target cells to bind to intracellular receptors.

Answer: C 
 Second messengers are chemical signals that are produced within the cell in response to the binding of a hormone to its receptor on the cell surface.

Answer: D
 Target cells are cells that have receptors for a particular hormone and are affected by that hormone.

Answer: E 
 Up-regulation refers to an increase in the number of receptors for a hormone on target cells, which increases the cell's sensitivity to the hormone.

Answer: F 
 Antagonism refers to a situation in which two hormones have opposing effects on a target cell or tissue.

Answer: G 
 Prostaglandins are a type of lipid molecule that can act as hormone-like signaling molecules in the body.

Answer: H 
 Tropic hormones are hormones that regulate the secretion of other hormones by different endocrine glands.

Answer: I 
 Nonsteroid hormones are composed of amino acids or derivatives of amino acids, and they typically bind to receptors on the surface of target cells.

Match Each Term with Its Explanation or Definition