NEET BIOLOGY

Detailed explanation-1: -Secretion: Epithelial tissue in your glands (glandular epithelium) can secrete (release) enzymes, hormones and fluids. Absorption: The epithelial lining of your internal organs, such as your liver and lungs, can allow the absorption of certain substances.

Detailed explanation-2: -Epithelial tissue is specialized to protect, absorb, and secrete substances, as well as detect sensations. It covers every exposed body surface, forms a barrier to the outside world, and controls absorption.

Detailed explanation-3: -Glandular cells are specialised cuboidal cells which are folded inwards and secrete various substances on the epithelial surface.

Detailed explanation-4: -There are three primary functions of epithelial tissue: serving as a protective barrier, secreting substances, and absorbing substances. The main function of specific tissues varies by the specific location and type of cell.

Detailed explanation-5: -Many epithelial cells are capable of secretion and release mucous and specific chemical compounds onto their apical surfaces. The epithelium of the small intestine releases digestive enzymes, for example. Cells lining the respiratory tract secrete mucous that traps incoming microorganisms and particles.