Imagine that you discover a microbial deep-sea organism that can derive energy from (inorganic) hydrogen gas (H₂). However, this microbe can also synthesize organic compounds from carbon-containing inorganic molecules in the ocean. This microbe is a: A)phototroph. B)photoautotroph. C)photoheterotroph. D)chemoautotroph. E)chemoheterotroph.

Question

Quizplus · Accepted Answer

The organism derives energy from inorganic hydrogen gas, which indicates that it is a chemoautotroph. It can also synthesize organic compounds from inorganic carbon-containing molecules, which further supports this classification as a chemoautotroph.

Imagine That You Discover a Microbial Deep-Sea Organism That Can