Answer :
Final answer:
The sebaceous material in a follicle darkens when it is exposed to air, forming a blackhead. This is a result of the oxidation of the sebum, an oil produced by the sebaceous glands. The overproduction and clogging of sebum in the hair follicles can eventually lead to acne.
Explanation:
The sebaceous material in a follicle darkens when exposed to air and forms a blackhead. This happens when the sebum (oil produced by the sebaceous glands) and keratin (a protein that helps protect the skin) clog the hair follicles. Initially, this plug is white, forming what we call a whitehead. However, when the sebum gets exposed to the air, it undergoes oxidation and turns black, leading to a blackhead. This change in color doesn't have anything to do with dirt, but merely the reaction of the sebaceous material to air.
A major side-effect of this process is acne, a skin condition common in areas rich in sebaceous glands like the face and the back. When an overproduction and accumulation of sebum occur, it along with the accumulation of dead skin cells can lead to the blockage of the hair follicles, therefore causing acne.
Learn more about Formation of blackheads here:
https://brainly.com/question/34697912
#SPJ11
