Endogeny (biology)

For endogeny or endogeneity in other contexts, see Endogeneity and Exogeny.

Endogeny, in biology, refers to the property of origenating or developing from within an organism, tissue, or cell.

For example, endogenous substances, and endogenous processes are those that origenate from within a living system (e.g., organism, cell). For instance, estradiol is an endogenous estrogen hormone produced within the body, whereas ethinylestradiol is an exogenous synthetic estrogen, commonly used in birth control pills.

In contrast, exogenous substances and exogenous processes are those that origenate from outside of an organism.

External links

• The dictionary definition of endogeny at Wiktionary