First slide

Human Endocrine System

Question

Which of the following is not a function of catecholamines?

Moderate

A

Increase in alertness
B

Dilatation of pupil
C

Synthesis of proteins
D

Breakdown of lipids.

Solution

Catecholamines cause breakdown of proteins and lipids.
These hormones increase alertness, pupilary dilation, piloerection (raising of hairs), sweating etc. Both the hormones increase the heart beat, the strength of heart contraction and the rate of respiration. Catecholamines also stimulate the breakdown of glycogen resulting in an increased concentration of glucose in blood.

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