AIIMS 2010
- Exam
- AIIMS
- Year
- 2010
- Subject
- Zoology
- Chapter
- Chemical Coordination and Integration
AIIMS 2010 · Zoology · Chemical Coordination and Integration
Assertion : Adrenaline is called an emergency hormone. Reason : It...
Assertion : Adrenaline is called an emergency hormone.
Reason : It acts on the cells of skeletal, cardiac, smooth muscles, blood vessels and fat cells.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion
- BIf both assertion and reason are true but reason is not the correct explanation of assertion
- CIf assertion is true but reason is false
- DIf both assertion and reason are false.
Correct answer
B. If both assertion and reason are true but reason is not the correct explanation of assertion
Step-by-step solution
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.