Question

If for some reason sebaceous glands fail to function
A. The body will not be able to regulate the body temperature
B. The skin will turn darker with more melanin
C. The hairs will fail to grow
D. The skin will turn dry and rough

Answer 1

Hint: The sebaceous gland plays a vital role in the functioning of the skin. They are located in the mid-dermis and are situated near a hair follicle. The sebaceous gland releases sebum that helps in providing moisture and desiccation of the skin.

Complete answer:
The sebaceous gland produces an oily product known as sebum, which helps maintain the skin's moisture.
It is also known as the body's natural oil. The components of sebum are triglycerides, wax esters, squalene, and cholesterol.
If a person has more oily skin, that means the body is producing excessive amounts of sebum.
The oil of our body not only contains sebum, but it also comprises sweat, dead skin cells, and tiny particles of dust.
Our face and scalp contain the maximum number of glands. There are 900 sebaceous glands per square centimeter of the skin.
The hormone androgen regulates sebum production. The more active your androgen is, the more sebum your body will produce.
However, progesterone, a female hormone that is not an androgen, seems to affect sebum production.
Progesterone is responsible for reducing the function of enzyme 5-alpha reductase, responsible for the activation of sebum production.
Hence, the high progesterone level decreases the amount of sebum produced.
If sebum glands fail to function, the skin and the scalp becomes rough and dry.

So, the correct answer is "option-D."

Note:
Sebaceous glands are essential for the body to maintain the production of natural body oils. However, the condition that triggers most of us regarding the sebum is pimples. When dirt and foreign particles invade the skin's pores, they combine with the sebum to form the glue-like substance that blocks the pores creating the spots.