Write true (T) or false (F)

(a) Epithelial tissue is protective tissue in animal body.

(b) The lining of blood vessels, lung alveoli and kidney tubules are all made up of epithelial tissue.

(c) Epithelial cells have a lot of intercellular spaces.

(d) Epithelial layer is permeable layer.

(e) Epithelial layer does not allow regulation of materials between body and external environment.

a) True

Epithelial tissue protects the body from physical, chemical and biological wear and tear.

b) True

Lining of blood vessels, lung alveoli and kidney tubules are all made of squamous and cuboidal epithelial tissues.

c) False

Epithelial cells have no intercellular spaces between them as they are tightly packed.

d) True

Epithelial layer is permeable and is found where small molecules cross the membrane by diffusion and filtration.

e) False

Epithelial cells allow regulation of materials between body and external environment. They allow selective transfer of materials between body and external environment and also contain carrier proteins which regulate the absorption of materials.