Question

8. Give a reason to explain why :
(i) Adrenaline helps in dealing emergency situations?
(ii) Secretions of growth hormone should be specific in the human body?
(iii) Some patients of diabetes are treated by giving injections of insulin?

Answer 1

Explanation:

adrenaline is a fight ,fright,flight hormone secreted from adrenal cortex

yes if it exceeds it will lead to acromegaly, gigantism, this growth hormone is controlled by GnRH.

insulin controls the blood glucose level. it is secreted from beta cells of the pancreas

Answer 2

a) Adrenaline helps in dealing emergency situations.

• Released by the adrenal glands

• Adrenaline increases the heart beat rate.

• Supplies more oxygen to muscles.

• Reduces the blood to the digestive system and the skin

• More blood supplied to the skeletal muscles.

b)  Secretions of growth hormone should be specific in the human body

• Excess of hormones lead to abnormalities.
• Example - Giganitism
• Lack of secretion also leads to other diseases
• Example - Dwarfism

c) Some patients of diabetes are treated by giving injections of insulin

• It inhibits the liver from producing more sugar.
• Insulin helps keeps blood sugar levels from getting too high or too low.