Navigation Links
Autotroph


An autotroph (in Greek eauton = self and trophe = nutrition) is an organism that produces its own cell mass and organic compounds from carbon dioxide as sole carbon source, using either light or chemical compounds as a source of energy. Plants and other organisms using photosynthesis are photolithoautotrophs; bacteria that utilize the oxidation of inorganic compounds such as hydrogen sulfide or ferrous iron for energy conservation are chemolithoautotrophs.

Autotrophs are a vital part of the food chain. They take energy from the sun or from inorganic sources and convert it into a form (organic molecules) that they use to carry out biological functions including cell growth; and that other organisms (called heterotrophs) can utilize as food. Thus, heterotrophsanimals, fungi, as well as most bacteria and protozoa — depend on autotrophs for energy and for the raw materials to make complex organic molecules. The heterotrophs obtain energy by breaking down organic molecules in their food. Even carnivorous animals rely on autotrophs because the energy and organic building blocks obtained from their prey comes ultimately from the autotrophs eaten by the prey.

See also


'"/>


(Date:8/1/2018)... ... July 31, 2018 , ... Prominent ... Global Conference , Awards honor late founder of Wisdom National Brands® makers of ... presented prestigious stevia awards to a renowned German professor and a prominent Belgian ...
(Date:7/31/2018)... ... 31, 2018 , ... Lifecycle Biotechnologies, a leading life science ... this role, Mr. Muzek will lead the company-wide industrial strategic business development efforts ... , With over 20 years in business development, Mr. Muzek previously served as ...
(Date:7/28/2018)... ... 2018 , ... Professor You-Lin Xu, Dean of Faculty of ... with the International Association for Wind Engineering (IAWE) Senior Award (Davenport Medal) for ... research, education, and application. Professor Xu is the first scholar in Hong Kong, ...
Breaking Biology News(10 mins):
Other biology definition