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Standard XII
Biology
Catecholamines and Their Mode of Action
Question

A man suddenly sees a tiger. His heartbeat goes up, blood pressure increases, etc. Which hormone is released at this time in his body?
  1. Parathonnone
  2. Adrenaline
  3. Corticoid
  4. Thyroxine

A
Parathonnone
B
Adrenaline
C
Corticoid
D
Thyroxine
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Solution
Verified by Toppr

Adrenaline is the stress hormone which is released by the adrenal gland in the case of emergency. The hormone is responsible for anI increase in the pulse rate, blood pressure during an emergency and stimulates the breaking of liver glycogen into blood glucose. So, when the person sees a tiger, due to fear and stress, there is released of adrenaline in the body.
Thus, the correct answer is option B.

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