Match each term with its explanation or definition.
-increasing the number of receptors on a target cell
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

Up-regulation refers to the process of increasing the number of receptors on a target cell.

Answer: B
 Steroid hormones are a class of hormones that are derived from cholesterol and can easily pass through the cell membrane to bind to nuclear receptors.

Answer: C
 Second messengers are molecules that transmit signals from the cell membrane to the cytoplasm or the nucleus of the cell to initiate cellular responses.

Answer: D
 Target cells are cells that have receptors for specific hormones and are responsive to their actions.

Answer: F
 Antagonism refers to the interaction between two hormones that have opposing effects on the same target cell or tissue.

Answer: G
 Prostaglandins are a class of lipid molecules that are derived from fatty acids and have a wide range of physiological effects.

Answer: H
 Tropic hormones are hormones that regulate the secretion and/or activity of other hormones.

Answer: I
 Nonsteroid hormones are hormones that are not derived from cholesterol and cannot easily pass through the cell membrane, so they typically bind to cell-surface receptors and activate second messenger systems.

Answer: A
 Synergism refers to the interaction between two or more hormones that enhances their individual effects on the same target cell or tissue.

Answer: J
 Permissiveness refers to the idea that one hormone must be present in adequate amounts for another hormone to exert its full effects on a target cell or tissue.

Match Each Term with Its Explanation or Definition