Bacteria

Heterotrophic bacteria are those bacteria that cannot prepare their own food and obtain food from the environment. These bacteria cannot convert light energy into chemical energy and need ingredients for their metabolism. These bacteria need organic carbon and can use ...

First, Archaea bacteria were classified in the eubacteria kingdom. Later in 1970, scientists separate the bacteria into two kingdoms as Archaea-bacteria and eubacteria. Below are some of the differences that are present among archaea and Bacteria. We have made two ...

Nitrifying bacteria convert? Nitrifying bacteria are those bacteria that can convert nitrite into nitrate. These bacteria do this process into 2 steps: Ammonification Nitrification Nitrifying bacteria are chemoautotrophs that are commonly are Nitrobacter and Nitrospira. These bacteria contain nitrite oxidase enzyme that can ...

Acid-fast bacteria are those bacteria that have mycolic acid in their cell wall. These bacteria stain acid-fast positive. This bacterium was first discovered by Ziehl–Neelsen that's why the staining is also named by the scientist i.e Ziehl–Neelsen staining. Examples: Mycobacterium tuberculosis.  So in ...

“Aerobic bacteria are those that can survive or grow in the presence of oxygen” Examples: Bacillus, Nocardia, Pseudomonas. Classification of aerobic bacteria: There are three types of aerobic bacteria. Obligate aerobes: These bacteria are strictly survived in the presence of oxygen. These bacteria can’t live in ...

“Iron bacteria are those bacteria that can accumulate iron from their environment.” These bacteria deposit iron and store iron as storage granules. These bacteria cause iron to react with oxygen and form rust. They form sticky slime layers that allow them ...

Encapsulated bacteria are those bacteria that contain polysaccharide capsule around their cell wall Examples: Streptococcus pneumonia, Hemophilus influenza Characteristics: This capsule can be found either on gram positive or gram negative bacteria. The capsule is different from the cell wall of bacteria. It is ...