Question

A researcher discovers a new bacterium that lives on the seafloor near hydrothermal vents. This organism reduces CO2 to form C6H12O6 (glucose), and also derives energy from H2 (by oxidation). This bacterium is a:

A. photoautotroph.
B. chemoheterotroph.
C. chemoautotroph.
D. photoheterotroph.

Answer 1

Answer:

C. Chemoautotroph

Explanation:

The new bacterium are able to create their own energy and biological materials  (glucose) from inorganic chemicals (CO2 and H2), therefore they are called chemoautotroph.