In vivo
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Studies that are in vivo are those in which the effects of various biological entities are tested on whole, living organisms or cells, usually animals, including humans, and plants, as opposed to a ti
A laboratory rat with a brain implant, that was used to record in vivo neuronal activity
In vitro
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In vitro studies are performed with cells or biological molecules outside their normal biological context. Colloquially called "test-tube experiments", these studies in biology and its subdisciplines
In vivo
…Ex vivo ("out of the living"), with part of a living being (usually tissues, organs, or cells) In vitro ("in the glass"), usually either a cell culture or a mixture of sub-cellular components (disrupted cell, purified biomolecules) Different subfields of…
Cloned plants in vitro
Top view of a Vitrocell mammalian exposure module "smoking robot", (lid removed) view of four separated wells for cell culture inserts to be exposed to tobacco smoke or an aerosol for an in vitro study of the effects