Protists use cilia to move within their habitat, but ciliated human cells like those in the bronchi are always anchored to one another and to an extracellular matrix; what benefit does cilia provide these cells?
A)Ciliary movement can dislodge infective bacteria before they permanently fasten to the plasma membrane.
B)The oxygen content of the extracellular fluid can be increased by agitation with cilia.
C)Ciliary movement can create currents that move secretions like mucus over the surface of a tissue.
D)all of the above

Question

Quizplus · Accepted Answer

Ciliary movement in human cells, such as those in the bronchi, helps move mucus and trapped particles out of the respiratory tract, aiding in keeping the airways clear.

Protists Use Cilia to Move Within Their Habitat, but Ciliated