Question

part a epithelial cells with important transport functions such as absorption and secretion often bear ______ on their free surfaces. options: microvilli, mitochondria, golgi complexes, cilia

Explanation:

Epithelial cells with transport functions (absorption, secretion) have microvilli on free surfaces. Microvilli increase surface area for these processes. Cilia move substances, Golgi modifies proteins, mitochondria produce energy—none match transport - related surface structures as microvilli do.

Answer:

A. microvilli