Your teacher gives you an unknown bacterium to observe. Select the method that would help you determine whether the bacterium is a chemotroph

growing the bacterium in a sulfur solution to see if it breaks the inorganic molecules down

exposing the bacterium to direct sunlight to see if it converts light to chemical energy

exposing the bacterium to carbon dioxide to see if it fixes carbon

growing the bacterium in an agar tube filled with protein to see if it breaks the organic molecules down

The method that would help determine whether the bacterium is a chemotroph is:

- Growing the bacterium in a sulfur solution to see if it breaks the inorganic molecules down.

Chemotrophs obtain energy by breaking down inorganic molecules, such as sulfur, to generate ATP. By observing whether the bacterium is capable of breaking down the inorganic molecules in the sulfur solution, one can determine if it is a chemotroph.