Question

Which of the following statements suggest the reason for the skin of humans to not perform as the respiratory organ?
(I) It is dry
(II) It is not thick
(III) It is not permeable to water and gases
(IV) It shows pigmentation

• A. All except III
• B. All except IV
• C. All except I and III
• D. All except I and IV

Answer 1

Answer: (B)

Skin is the largest organ in our body which acts as a protective organ. Our skin is not permeable to water and gases for proper exchange. Human skin is not moist which is required to promote diffusion and the skin is multilayered with tightly packed cells. Think layer of membrane is required for smooth diffusion of gases which is absent in our skin.