Bacteria are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, …

Bacterial infections are caused by harmful bacteria and can affect many parts of your body. They can be minor or serious and are often treated with antibiotics.

Dec 7, 2025 · Although bacterial cells are much smaller and simpler in structure than eukaryotic cells, the bacteria are an exceedingly diverse group of organisms that differ in size, shape, habitat, and …

Bacteria are microbes with a much simpler cell structure than many other organisms, but they are by no means simple. The more scientists look, the more they understand about how complex bacteria are. …

Aug 8, 2025 · In 1838, the German naturalist Christian Gottfried Ehrenberg called them ‘bacteria’, from the Greek word ‘baktḗria’, meaning ‘little stick’. Later, Robert Koch’s research, famously dubbed …

May 21, 2025 · Several bacterial species like Bifidobacterium, E.coli, Lactobacillus, etc. are used as probiotics. Bacteria are used in producing fermented food products like fermented dairy products, …

5 days ago · Bacteria are small single-celled organisms. Bacteria are found almost everywhere on Earth and are vital to the planet's ecosystems. Some species can live under extreme conditions of …

Oct 19, 2023 · Bacteria are microscopic infectious agents that have a long history of infecting humans, but they also play a vital role in supporting human health.

The meaning of BACTERIAL is of, relating to, or caused by bacteria. How to use bacterial in a sentence.

Jul 3, 2014 · One gram of soil, which is about how much you might pinch between two fingers, may contain as many as 40 million bacterial cells. Some bacteria live in water, with over a million bacteria …