The Cell Extension That Assists Epithelial Cells in Absorption Is

Question

The cell extension that assists epithelial cells in absorption is called:
A)cilia.
B)flagella.
C)microvilli.
D)desmosomes.

Accepted Answer

Microvilli are small, finger-like cell extensions found in the epithelial cells lining the small intestine and other areas involved in absorption. They increase the surface area of the cell and aid in absorption of nutrients. Cilia are similar, but they are typically involved in movement (such as moving mucus out of the respiratory tract) rather than absorption. Flagella are long, whip-like extensions used for cell movement (such as in sperm cells). Desmosomes are protein structures that anchor cells together, but they do not aid in absorption.