Final answer:
Intestinal cells develop microvilli, which are extensions of the plasma membrane that increase surface area for better absorption of nutrients in the small intestine.
Step-by-step explanation:
Intestinal cells, by increasing folds within the plasma membrane, create microvilli to increase surface area for aiding and capturing materials in digestion. These microvilli are fingerlike projections that significantly enhance the plasma membrane's capacity to absorb nutrients. This biological adaptation is especially prominent in the cells lining the small intestine, the primary site of nutrient absorption. The increased surface area provided by both microvilli and the larger folds known as villi allow for efficient uptake of digested food molecules, meeting the body's nutritional demands.