NEET PG DENTAL EXAM

Detailed explanation-1: -These actin filaments are crucial to the structure of microvilli as they support their structure and increase the surface area of the epithelial cells in the locations they are in. Not only do microvilli increase surface area, but they also aid in adhesion for fertilization as well as for white blood cells.

Detailed explanation-2: -Microvilli have traditionally been viewed as passive scaffolds that increase the surface area of the gut wall. The apical plasma membrane tightly wraps around each protrusive bundle of actin, providing more space for nutrient processing and absorption.

Detailed explanation-3: -Answer: ‘Absorption’ is the characteristic feature of the epithelial cells of the intestine.

Detailed explanation-4: -Microvilli, found in tightly packed arrays on the apical surfaces of polarized epithelial cells, increase the surface area of the cell exposed to the lumen to enhance absorption and secretion.