Proteins having linked chains of carbohydrates called glycoproteins are essential to cellular activity. They are involved in immunological responses, signalling, and cell identification. They are found on cell surfaces and in extracellular matrices. These molecules are essential for preserving the architecture of cells and facilitating their connections with the outside world. Glycoproteins help in protein folding, stability, and transport in biological processes. They are implicated in a number of illnesses and act as markers for cellular identity.