Single Answer MCQ
Q-00040192
What hormone is primarily responsible for increasing heart rate during stressful situations?
1
Adrenaline
2
Insulin
3
Thyroxin
4
Testosterone
Answer and Solution
Answer
A. Adrenaline
Solution:
Adrenaline is the hormone responsible for the 'fight or flight' response, increasing heart rate and preparing the body for action. Insulin regulates blood sugar, Thyroxin supports metabolism, and Testosterone influences sexual characteristics.
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