How is bacteria useful to us?

Answer 1

This is a multifaceted subject. Concisely stated, we CANNOT survive as a species without bacteria. They are all around us and ON us. Bacteria living on our skin protect us from external pathogens by fighting off virulent agents, e.g. harmful bacteria that can cause skin infection, fungi, parasites. They also maintain healthy skin pH levels. The bacteria in our digestive tract also protect us from pathogens, aid our digestion, and they also participate in the synthesis of various vitamins. These bacteria in and on our bodies are symbiotic (we are mutually beneficial to each other), and they are ESSENTIAL for human life. Aside from that type of bacteria, other types are used industrially: food production (cheeses and other foods requiring fermentation), alcohol production, creation of certain medicines, etc.

Answer 2

There are many useful bacteria including those that live in our bodies and keep us healthy. Some bacteria attack oil spills and help clean up the environment. Others have been discovered that even help break down plastic in landfills. We are only beginning to understand the potential of good bacteria.

Answer 3

Not every bacteria is harmful to us.

Some like the gut bacteria are very essential for their survival.

But many bacterias like the Salmonella Typhi causes typhoid and so on.....

-Ashish Mradul

Answer 4

There are several ways that bacteria are helpful to us. They can eat other substances that can harm people. They allow us to have sour cream and yogurt. Both of these products need bacteria.