Your teacher gives you an unknown bacterium to observe. Select the method that would help you determine whether the bacterium is a chemotroph.(1 point)Responsesgrowing the bacterium in a sulfur solution to see if it breaks the inorganic molecules downgrowing the bacterium in a sulfur solution to see if it breaks the inorganic molecules downexposing the bacterium to carbon dioxide to see if it fixes carbonexposing the bacterium to carbon dioxide to see if it fixes carbonexposing the bacterium to direct sunlight to see if it converts light to chemical energyexposing the bacterium to direct sunlight to see if it converts light to chemical energygrowing the bacterium in an agar tube filled with protein to see if it breaks the organic molecules down

Answer 1

To determine whether the unknown bacterium is a chemotroph, the best method would be growing the bacterium in an agar tube filled with protein to see if it breaks the organic molecules down.

Chemotrophs obtain energy through the oxidation of chemicals, which can include both organic and inorganic molecules. If the bacterium can break down organic molecules like proteins, it would indicate that it can derive energy from chemical sources, supporting the classification as a chemotroph.