Q. Consider the following statements I. Dead cells of the skin prevents pathogen entry II. Skin secretes oil that makes skin surface acidic III. Skin secretes sweat that makes surface acidic Which of the statement given above are correct?
A) I and II
B) I and III
C) II and III
D) I, II and III
Explanation
The skin provides the first defense against invasion by pathogens, skin acts as a wall that keeps pathogens out of the body. Secretions of the oil and sweat glands within the dermis make the skin’s surface-acidic, inhibiting the growth of many pathogens. Sweat also contains the enzyme lysozyme, which attacks and digests the cell walls of many bacteria
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.