Which of These is TRUE for a Chemoorganoheterotroph

Question

Which of these is TRUE for a chemoorganoheterotroph?
A)Uses inorganic carbon as an energy source and organic carbon as a carbon source.
B)Uses inorganic carbon as an electron source and organic carbon as a carbon source.
C)Uses organic carbon as an electron source and inorganic carbon as a carbon source.
D)Uses organic carbon as an electron source and a carbon source.
E)Uses inorganic carbon as an energy source and a carbon source.

Accepted Answer

Chemoorganoheterotrophs are organisms that obtain both their energy and carbon from organic compounds. They use organic carbon as both an electron source (to obtain energy) and a carbon source (for building cellular components). They do not use inorganic carbon as either an energy or carbon source.