Final answer:
Intestinal cells feature microvilli, which are small, fingerlike projections that significantly increase the surface area of the plasma membrane for enhanced absorption in the small intestine.
Step-by-step explanation:
Intestinal cells, by increasing folds within the plasma membrane create microvilli in order to increase surface area for aiding and capturing materials in digestion.
Microvilli are the small, fingerlike projections found on the plasma membrane of absorptive cells, particularly those lining the small intestine. This structural adaptation allows for a considerable increase in surface area, enhancing the small intestine's ability to absorb nutrients efficiently.
The inner surface of the small intestine is also lined with larger folds called villi, which further add to the absorptive surface area. However, it is the microvilli that are the specific structures created by the folding of the plasma membrane within these cells.