Organotroph

Definition

An organotroph is an organism that obtains electrons or hydrogen atoms from organic compounds to fuel its metabolic processes. These organisms rely on organic molecules as their electron donors for energy production.

5 Must Know Facts For Your Next Test

1. Organotrophs use organic compounds, such as glucose, as their primary source of electrons.
2. They are contrasted with lithotrophs, which utilize inorganic compounds for the same purpose.
3. Organotrophs can be found in various environments, including soil, water, and within host organisms.
4. Many bacteria and fungi are classified as organotrophs due to their reliance on organic matter for metabolism.
5. In microbial ecosystems, organotrophs often play a role in decomposing organic material and recycling nutrients.

Review Questions

Related terms

Lithotroph: An organism that uses inorganic compounds as sources of electrons.

Heterotroph: An organism that obtains its carbon from organic compounds.

Chemotroph: An organism that derives energy from chemical reactions rather than light.