Question

Which of the following can a chemolithotrophic bacteria use as a source of energy?

1. Water
2. Light
3. Ammonia
4. Glucose

Answer 1

Chemolithotrophic bacteria, or chemoautotrophs, use ammonia (NH4) as a source of energy, helping to cycle essential nutrients like nitrogen in ecosystems.

Step-by-step explanation:

Chemolithotrophic bacteria, also known as chemoautotrophs, are capable of using inorganic molecules as a source of energy. These organisms can utilize compounds like ammonia (NH4) to break down into simpler substances, releasing energy in the process. This type of bacteria is significant in ecosystems as it helps cycle essential nutrients like nitrogen. Unlike photoautotrophs that require sunlight to make food, chemolithotrophs rely on chemical compounds such as ammonia, hydrogen sulfide (H₂S), and sometimes even iron or sulfur.