An increase in epinephrine results in:a. An increase activity of insulin. b. An increased activity of protein kinase A. c. A decreased level of cAMP. d. An increase activity of protein phosphatase.

Answered: An increase in epinephrine results in:…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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An increase in epinephrine results in:

An increase activity of insulin.

An increased activity of protein kinase A.

A decreased level of cAMP.

An increase activity of protein phosphatase.

Expert Solution

Step 1

In emergency or stress condition (Like injury, pain, fear, accident, etc.), impulses from hypothalamus stimulate preganglionic neurons, which in turn stimulate the chromaffin cells of the adrenal medulla to secrete epinephrine or adrenaline. This hormone is synthesized from amino acid tyrosine, and also called as catecholamine family of hormones. Epinephrine acts in fight and flight responses, hence also called emergency hormone.

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