Question

Which of the following is a function of the skin?

a. Oxygen uptake from the environment

b. storage of minerals

c. produce a healthy glow.

d. initial step in Vitamin D synthesis

e. Nutrient absorption

Answer 1

c) It produces a healthynglow because it protects body from UV, microbes, physical injuries etc and it absorbs nutrient and gives a healthy glow

d) Synthesis of Vitamin D. Vitamin D (strictly D3, as there are different types of vitamin D) is made when an organic chemical in the skin called 7-dehydrocholesterol reacts with UVB ultraviolet light - usually due to natural daylight but could be from articifical sources - that falls onto the skin. Vitamin D3 is produced in the two innermost layers of the skin - called the stratum basale and stratum spinosum.

e) Sometimes skin helps in nutrient absorption