Biology

Electrophoresis Definition Electrophoresis is the migration of electrically charged molecules through a fluid or gel under the influence of an electric field. Electrophoresis is used…

Hydrolysis Definition Hydrolysis is the breaking down of a chemical compound into two or more simpler compounds by reacting with water. The proteins, fats, and…

Cofactor Definition Cofactor in biochemistry is a substance, such as a metallic ion or a coenzyme that must be associated with an enzyme for the…

T-Cell Receptor Definition T-cell receptor (TCR) is one of two polypeptide chains (a or ß) on the surface of T lymphocytes that recognize and bind…

Cytotoxic T Cell Definition Cytotoxic T cell is a type of immune cell that can kill certain cells, including foreign cells, cancer cells, and cells…

Natural Killer Cell Definition Natural killer cell is a cell that can react against and destroy another cell without prior sensitization to it. It is…

Lymphocyte Definition Lymphocyte is any of various white blood cells, including B cells and T cells, that function in the body’s immune system by recognizing…

Plasma Cell Definition Plasma cell is a lymphocyte that originates from a B cell and produces antibodies as part of a humoral immune response. They…

Oral Mucosa Definition Oral mucosa is a specialized type of tissue that lines the mouth. It is composed of highly-regenerative stratified epithelium and submucosal connective…

Gastric Mucosa Definition Gastric mucosa is the mucous membrane layer of the stomach which contains the glands and the gastric pits. It consists of epithelium,…

Mucous Membrane Definition Mucous membrane is any of the membranes lining the passages of the body, such as the respiratory and digestive tracts, that open…

Vocal Folds Definition Vocal folds is The two folded pairs of membranes in the larynx (voice box) that vibrate when air that is exhaled passes…