All organisms make food either through photosynthesis or Chemosynthesis
.In this case bacteria are creating sugar (food) through all the course of activities mentioned here. Bacteria that live deep under the ocean uses energy released by any chemical reaction to make food (sugar) for themselves.
The chemical reaction involved here is as follows -
The ribosome binds to mRNA at a specific area. The ribosome starts matching tRNA anticondon sequences to the mRNA condom sequence. Each time a new tRNA comes into the ribsome, the amino acid that it was carrying gets added to the elongating polypeptide chain.