Zoology-Hormones
NEET Zoology Hormones MCQ Question
Type: MCQ-conceptual-Hard-Class 11
If a person experiences a stressful situation leading to the secretion of catecholamines, how would it affect the rate of heart contraction and glycogen breakdown in the body?
A
Both heart contraction rate and glycogen breakdown increase.
B
Heart contraction rate increases but glycogen breakdown decreases.
C
Heart contraction rate decreases but glycogen breakdown increases.
D
Both heart contraction rate and glycogen breakdown decrease.
Correct Answer
Option A
Detailed Explanation
The NCERT context explains that catecholamines, such as adrenaline and noradrenaline, increase the heart beat and stimulate the breakdown of glycogen during stress.
Found an issue with this question?