Bacteria that build sugars using energy from inorganic chemicals rather than light are:

1. The first half of the name gives the energy source and the second half the carbon source. 2. These organisms still build their own sugars, so they are autotrophs. 3. A third very interesting group of bacteria synthesize sugars, not by using sunlight's energy, but by extracting energy from inorganic chemical compounds. 4. Hence they are referred to as chemoautotrophs. 5. Photoautotroph is the trap, since that name would require light. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 8 'Photosynthesis', sections 8.1-8.3_