Mucin ________ the Viscosity of Mucus, Facilitating the ________ of Dust

Question

Mucin ________ the viscosity of mucus, facilitating the ________ of dust and dirt particles.
A) increases; trapping
B) decreases; flushing
C) increases; diluting
D) decreases; exocytosis

Accepted Answer

Mucin is a glycoprotein that gives mucus its viscous properties. This viscosity helps to trap dust and dirt particles, facilitating their removal from the respiratory tract.