Cell biology

Cell biology

The study of cell structure, physiological properties, interactions with the environment and life cycle.

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Cell biology

Maximum sustainable yield (MSY)

Biology; Cell biology

The maximum number of a food or game population that can be harvested without harming the population's ability to grow back.

Medulla

Biology; Cell biology

1. A term referring to the central portion of certain organs; e.g., the medulla oblongata of the brain and the adrenal medulla, which synthesises epinephrine and norepinephrine. 2. In more common ...

Mass extinction

Biology; Cell biology

A time during which extinction rates are generally accelerated so that more than 50% of all species then living become extinct; results in a marked decrease in the diversity of organisms. Mass ...

Metamorphosis

Biology; Cell biology

The process of changing from one form to another; e.g., in insects, from the larval stage to the pupal stage to the reproductive adult stage.

Metabolic pathway

Biology; Cell biology

A series of individual chemical reactions in a living system that combine to perform one or more important functions. The product of one reaction in a pathway serves as the substrate for the ...

Messenger RNA (mRNA)

Biology; Cell biology

Blueprint for protein synthesis that is transcribed from one strand of the DNA (gene) and which is translated at the ribosome into a polypeptide sequence.

Mesozoic Era

Biology; Cell biology

The period of geologic time beginning 245 million years ago and ending 65 million years ago; the age of the dinosaurs and cycads, the Mesozoic falls between the Paleozoic and Cenozoic Eras and ...