Question

Assertion (A): The adrenaline hormone prepares our body to function at the maximum efficiency during emergency situations like danger, anger, excitement, etc.

Reason (R): When we are faced with a dangerous situation, then our nervous system stimulates the adrenal glands to secrete more adrenaline hormone into our blood. This adrenaline hormone increases our heart beats, breathing rate, blood flow into muscles and causes liver to put more stored glucose into our blood. All these actions of adrenaline hormone produce a lot of energy in our body very, very quickly. And this energy helps us to face the dangerous situation.

Options

• Both A and R are true and R is correct explanation of the assertion.

• Both A and R are true but R is not the correct explanation of the assertion.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true and R is correct explanation of the assertion.

Explanation:

The adrenaline hormone prepares the body to function at maximum efficiency during emergency situations such as danger, fear, anger, or excitement. Therefore, Assertion (A) is true.

During a dangerous situation, the nervous system stimulates the adrenal glands to secrete more adrenaline. This hormone increases the heart rate, breathing rate, blood flow to muscles, and the release of glucose from the liver, providing instant energy to face the emergency. Therefore, Reason (R) is true.

Hence, both A and R are true and R is correct explanation of the assertion.