Brush border enzymes are found in the
A) circular folds.
B) villi.
C) microvilli.
D) plicae circularis.
E) rugae.

Question

Quizplus · Accepted Answer

Brush border enzymes are located on the microvilli, which are tiny projections on the surface of the small intestine's absorptive cells. The circular folds (A), plicae circularis (D), and rugae (E) are all refer to structural features of the small intestine that increase its surface area for absorption, but do not contain brush border enzymes. The villi (B) do contain brush border enzymes but are not the best answer as they do not specify the level of structure where the enzymes are actually located.

Brush Border Enzymes Are Found in the