Match each term with its corresponding description or definition.
-Hormone that requires a second messenger
A)Endocrine gland
B)Negative feedback
C)Target organ cell
D)Steroid hormone
E)Prostaglandin
F)Exocrine gland
G)Nonsteroid hormone
H)Cyclic AMP
I)Positive feedback

Question

Quizplus · Accepted Answer

Nonsteroid hormones are hormones that do not penetrate the plasma membrane and require a second messenger (such as cyclic AMP) to transmit the signal.

Answer: A
 Endocrine glands are ductless glands that secrete hormones directly into the bloodstream, to be carried to target organs.

Answer: C
 Target organ cells are cells that have receptors for specific hormones and are affected by those hormones.

Answer: D
 Steroid hormones are hormones derived from cholesterol that can penetrate the plasma membrane and act on the cell's DNA directly.

Answer: E 
 Prostaglandins are hormone-like substances produced by a variety of cells and have a wide range of physiological effects.

Answer: F
 Exocrine glands are glands that release their secretions through ducts. Examples include sweat glands and salivary glands.

Answer: H
 Cyclic AMP (cAMP) is a second messenger that is produced by the activation of adenylate cyclase, as a response to non-steroid hormones binding to their receptors.

Answer: B
 Negative feedback is a regulatory mechanism in which a hormone or product of a process inhibits the process or its own production, helping to maintain homeostasis.

Answer: I
 Positive feedback is a regulatory mechanism in which a hormone or product of a process stimulates the process or its own production, amplifying the signal or response.

Match Each Term with Its Corresponding Description or Definition