Exemplar Problems

Question:

Do you think microbes can also be used as a source of energy? If yes, how?

Answer:

• Yes, microbes can be used as a source of energy through a process known as microbial bioenergy production. Microbes can generate energy in several ways:
  • Microbial fuel cells (MFCs) use the metabolic activity of certain bacteria to convert organic matter into electricity.
  • Anaerobic digestion by microbes can produce biogas, which is a source of renewable energy.
  • Some microorganisms are used in the production of biofuels, such as bioethanol and biodiesel, through fermentation processes.