Author Question: Describe the three phases of the general adaptation syndrome (GAS) that constitute the body's ... (Read 55 times)

formula1 · **on:** Feb 28, 2019

Describe the three phases of the general adaptation syndrome (GAS) that constitute the body's response to stress. Which endocrine secretions play dominant roles in the alarm and resistance phases?

Question 2

Lipogenesis generally begins with
A) glucose.
B) amino acids.
C) fatty acids.
D) acetyl-CoA.
E) succinyl-CoA.

sylvia · **Reply #1 on:** Feb 28, 2019

Answer to Question 1

The three phases are alarm, resistance, and exhaustion. During the alarm phase, energy reserves are mobilized and the body prepares itself with fight or flight responses. During the resistance phase, glucocorticoids are released to (1 ) mobilize lipid and protein reserves, (2 ) conserve glucose for neural tissue, (3 ) elevate and stabilize blood glucose concentrations, (4 ) conserve salts and water, and (5 ) lose K+ and H+. During the exhaustion phase, homeostatic regulation breaks down. Epinephrine plays a dominant role in the alarm phase and glucocorticoids are dominant in the resistance phase.

Answer to Question 2

D