Microvilli are seen in all; except
a) Duodenum
b) Gall bladder
c) PCT
d) Collecting duct
Answer: Collecting duct
Explanation:
Microvilli are finger like projections from the cell surface that can be seen by EM.
Each microvillus consists of an outer covering of plasma membrane and cytoplasmic core in which there are numerous microfilaments (Actin filaments).
Microvilli are seen most typically at sites of active absorption e.g. the intestine and proximal and distal convoluted tubules of kidney.
The inner surface of the gall bladder is covered by the mucosa. The surface is made up of a simple columnar epithelium. The epithelial cells have microvilli, and look like absorptive cells in the intestine.