Epithelial cells of the intestine involved in food absorption have on their surface
(a) pinocytic vesicles
(b) phagocytic vesicles
(c) zymogen granules
(d) The mucosa and sub-mucosa of small intestine are thrown into folds. Surfaces of these folds is covered by fine, finger-like projections of the epithelium.
These projections are called villi. In addition, the epithelial cells of the villi are covered on their exposed surface by cytoplasmic projections called microvilli.