Question 1
A microorganism grows in the lab on medium containing mineral salts but no organic compounds. The organism is likely to be a(n)
◦ heterotroph.
◦ chemotroph.
◦ autotroph.
◦ chemoheterotroph.
◦ The answer cannot be determined from the information provided.
Question 2
A cell that uses an organic carbon source and obtains energy from light would be called a
◦ chemoautotroph.
◦ photoheterotroph.
◦ photoautotroph.
◦ chemoheterotroph.
◦ lithoautotroph.