Sample flashcards

Card 1 of 10 · From Science Paper I — 1.

Question

What is the primary role of mucous membranes and cilia in the human respiratory tract?

To increase the surface area for gaseous exchange in the alveoli

To trap dust particles and microbes and sweep them away from the lungs

To facilitate the diffusion of oxygen into the blood capillaries

To produce ATP required for the contraction of respiratory muscles

Demo flashcards · MurphyLearn