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Question No. 21
Cells which bear microvilli on their free surfaces are not found in inner lining of
0
Duodenum
Jejunum
PCT of nephron in the kidney
O Bronchioles​

Answer 1

Answer:

pct of nephron doesn't contains micrrovilli

Explanation:

duodenum and jejunum contains microvilli for better absorption and to increase surface area...

while brochioles has some brush border like cells to filter the air inspired

Answer 2

The occurrence of microvilli on the free surface of the epithelium increases its surface area several times.

increases its surface area several times.Explanation:

• The free surface of the cuboidal epithelium bears minute finger-like projection called microvilli. Such epithelium is called as brush border epithelium.
• Cells bearing microvilli are present in duodenum and jejunum because it increases the surface area in the small intestine for the absorption of food.
• Brush-bordered cuboidal epithelium is present in the PCT of the nephron and is responsible for reabsorption.
• Ciliated cuboidal epithelium is present in bronchioles. Microvilli is absent in bronchioles.