Question

Salma had a very soft and smooth skin during her childhood. As she entered adolescence, she developed pimples on her face. The skin specialist advised her to wash her face at regular intervals. Can you explain the reasons for the appearance of pimples on her face?
A. Androgens
B. Thyroid hormone
C. Adrenaline
D. Insulin

Answer 1

Hint:- Salma developed pimples on her face as she reached the age of puberty because of increased sebum secretions due to the excess activity of a steroid hormone which is expressed more in males as compared to females.

Complete Answer:-
Option (A) is correct. Androgen is a steroid hormone that is expressed more in males as compared to females. The development of pimples or acne on the face is due to the excess sebum secretions when a person reaches puberty as androgen is expressed in excess during this age. In females, androgen is also present that is active during puberty. Hence, androgens can be the reason for the appearance of pimples on Salma’s face.
Option (B) is incorrect. Thyroid hormone plays an important role in increasing the basal metabolic rate, affecting protein synthesis, and neural maturation. It does not play any role in increasing the sebum secretions that will lead to the development of pimples on the face.
Option (C) is incorrect. Adrenaline hormone is known for increasing the heart rate, increasing blood pressure, expanding the air passage of the lungs, enlarging the pupil in the eye, etc.
Option (D) is incorrect. Insulin hormone is secreted by the pancreas that is known for regulating blood glucose levels.

Hence, the correct option is (A).

Note:- Androgen hormone stimulates male characteristics in an individual. It is known for regulating the sebum secretions. This hormone is present in females also and is crucial for the maintenance of mood, sense of well-being and it is active during puberty. The principal androgens are testosterone and androstenedione.