Endogeny, in biology, refers to the property of originating or developing from within an organism, tissue, or cell.
For example, endogenous substances, and endogenous processes are those that originate within a living system (e.g. an organism or a 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 originate from outside of an organism.
References
- "Endogenous | Define Endogenous at Dictionary.com". Dictionary.reference.com. Retrieved 2011-07-11.
External links
The dictionary definition of endogeny at Wiktionary
Endogeny in biology refers to the property of originating or developing from within an organism tissue or cell For example endogenous substances and endogenous processes are those that originate within a living system e g an organism or a 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 originate from outside of an organism References Endogenous Define Endogenous at Dictionary com Dictionary reference com Retrieved 2011 07 11 External linksThe dictionary definition of endogeny at Wiktionary
