Cell biology

Cell biology (also called cellular biology or cytology, from the Greek kytos, "container") is an academic discipline which studies cells. This includes their physiological properties such as their structure and the organelles they contain, their environment and interactions, their life cycle, division and function (physiology) and eventual death. This is done both on a microscopic and molecular level, and cell biology researches both single-celled organisms like bacteria and specialized cells in multicellular organisms like humans.

Techniques

Purification of cells and their parts

Purification of cells and their parts is achieved in the following ways:

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• Cell fractionation
• Flow cytometry
• Release of cellular organelles by disruption of cells.
• Separation of different organelles by centrifugation.
• Proteins extracted from membranes by detergents and salts.