Question

Three requirements for efficient exchange of gases through membranes in humans are:

a. Moistness
b. Dryness
c. Small surface area
d. Large surface area
e. Many layers of cells thick
f. One layer of cells

Answer 1

The three requirements for efficient exchange of gases through membranes in humans are moistness, large surface area, and one layer of cells.

Step-by-step explanation:

The three requirements for efficient exchange of gases through membranes in humans are:

• Moistness: Gases can dissolve in moisture, making it easier for them to move across the membrane.
• Large surface area: A large surface area allows for more contact between the gases and the membrane, increasing the rate of diffusion.
• One layer of cells: Having only one layer of cells ensures a shorter diffusion distance, facilitating faster gas exchange.

These requirements optimize the efficiency of gas exchange in human respiratory systems.