Question

Assertion : Adrenaline is called an emergency hormone.
Reason : It acts on the cells of skeletal, cardiac, smooth muscles, blood vessels and fat cells.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (B)

Adrenaline (epinephrine) is a hormone produced by the medulla of the adrenal glands, that increases heart activity, improves the power and prolongs the action of muscles, and increases the rate and depth of breathing to prepare the body for 'fright, fight, or flight.It is secreted at the time of emergency. Hence it is also called emergency hormone.