Question

Write a note on cutaneous respiration

Answer 1

Gas exchange in cutaneous respiration is controlled by three factors: Ventilation: the rate of delivery of respiratory medium (water or air) to the respiratory surface. Diffusion: the passage of gases through the skin. Convection: the carrying of dissolved gases towards or away from the lungs.

Answer 2

Answer:

Cutaneous Respiration:

• The skin of frog provides an extensive surface for exchange of gases.

• It is thin richly supplied with blood and kept moist by the mucus and water. The cutaneous respiration is always carried out.

• It is practically the only mode of respiration when the frog is under water.

• Dissolved oxygen in the water is exchanged through the moist surface of the skin by diffusion.