GENERAL HISTOLOGY

Detailed explanation-1: -Large amounts of smooth ER are found in liver cells where one of its main functions is to detoxify products of natural metabolism and to endeavour to detoxify overloads of ethanol derived from excess alcoholic drinking and also barbiturates from drug overdose.

Detailed explanation-2: -The smooth endoplasmic reticulum functions in many metabolic processes. It synthesizes lipids, phospholipids as in plasma membranes, and steroids. Cells that secrete these products, such as cells of the testes, ovaries, and skin oil glands, have an excess of smooth endoplasmic reticulum.

Detailed explanation-3: -Degradation of cellular material is not a function of endoplasmic reticulum. Degradation of cellular wastes and materials is carried out by lysosomes. Hence statement D is incorrect.

Detailed explanation-4: -Plasma cells are essentially lymphocytes with a large amount of basophilic cytoplasm. The cytoplasm contains a large amount of Golgi apparatus and rough endoplasmic reticulum. This is in keeping with the primary function of secretions of protein, namely antibody.