Answer the following:
(a) Which hormone is responsible for the changes noticed in females at puberty?
(b) Dwarfism results due to deficiency of which hormone?
(c) Blood sugar level rises due to deficiency of which hormone?
(d) Iodine is necessary for the synthesis of which hormone?

Correct Answers:

(a) Estrogen hormone is responsible for the changes noticed in females at puberty.

(b) Dwarfism occurs due to the deficiency of growth hormone.

(c) The deficiency of Insulin hormone leads to a rise in blood sugar levels.

(d) Iodine is necessary for the synthesis of the thyroxine hormone.

[Extra information:

Estrogen - Estrogen is a hormone produced by the ovaries of the female, which functions to control the development of female sex organs (fallopian tubes, uterus), and female characteristics such as high pitched voice, enlargement of mammary glands (breasts), initiation of ovulation and menstruation widening of pelvis and hips.

Thyroxine - Thyroxine is a hormone, produced by the thyroid gland which stimulates the metabolic rate.  It controls the speed at which oxygen and food products react to release energy for the body to use.

Insulin - Insulin is a hormone released from the pancreas into the bloodstream so that it can reach different parts of the body and regulate the blood sugar (glucose) level in the body. 

The deficiency of insulin causes diabetes, so diabetic patients are treated by giving insulin injections into their bodies.

Growth Hormone - The pituitary gland secretes the growth hormone. The effect of the following on a person is given below:

(i) Deficiency of growth hormone: Dwarfism

(ii) Excess secretion of growth hormone: Gigantism

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