Question

Assertion-Squamous epithelium consists of thin and, flat, irregular-shaped cells which fit together closely like tiles in the floor.

Reason-It helps in the movement of mucus,urine, eggs , sperms etc.

Answer 1

1. Squamous epithelium is made up of flat, irregular cells without intercellular cells which fit together like a tile and hence it is called pavement epithelium.
2. These epithelia are seen in the lining of esophagus and mouth.
3. It provide protection for underlying cells from mechanical injury, from pathogens, other function includes excretion, gas exchange and secretion.
4. Ciliated epithelial cells are made up of cube or column like cells with cilia on their free surface.
5. These cells lines the urinary tubules of kidney and vas deferens (cube), nasal passage, oviduct, ventricles of brain (column) and respiratory tract.
6. These cells helps in the movement of mucus, urine, eggs, sperms and cerebrospinal fluid in specific directions.

Thus, Assertion is true but Reason is false.