Bacteroides fragilis
Bacteroides fragilis is a Gram negative pleomorphic rod shaped bacteria. It is an obligate anaerobic, non-spore forming, non-motile bacterium. Bacteroides fragilis is a normal inhabitant of human colon but if it is displaced and spread to other surrounding tissues or ...
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Spore-forming bacteria are those bacteria that can form spores under unfavourable conditions. Spores are the dormant form of bacteria that can tolerate all the fluctuations in the environment. Spores have the least metabolic activity. When favourable conditions arrive, these spores ...
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Is Peptidoglycan a polysaccharide found only in bacteria?
Peptidoglycan is the monomeric form of carbohydrate that is found in bacteria only. This peptidoglycan is the polymers of sugar and amino acids. The sugar N-acetylglucosamine and N- acetylmuramic acid linked with the amino acids. Three to five peptide chains ...
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Pyogenic Bacteria
Pyogenic bacteria are those bacteria that are involved in the formation of pus. Pus is the yellowish exudate. It is formed in the site of inflammation and abscess. It is also called pus and postule. Examples: Staphylococcus aureus., Streptococcus pyogenes Characteristics of Pyogenic ...
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Chemotaxis in Bacteria
Chemotaxis is the process by which the bacteria respond to chemical gradients. Chemo means chemical and taxis means to move. It is the movement in which the bacteria and somatic cell move according to chemical gradients present in the environment. Types ...
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Iron bacteria in well water
These are the bacteria that can use iron and manganese from the water. These bacteria combine the oxygen and iron of the water and deposit it in the form of rust in water. Characteristics: These are the microorganisms that are present ...
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Similarities Between Archaeans and Aacteria
The similarities between archaeans and bacteria are as follows. By reading this post you can easily understand the traits which archaeans and bacteria share Cell type Both cells are Prokaryotic in nature. These cells lack membrane-bound organelles and major organelles like the ...
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Purple Sulfur Bacteria
These are the group of anaerobic bacteria that are capable of photosynthesis. They may be Microaerophillic bacteria. These bacteria are divided into two groups i.e. the Chromatiaceae and the Ectothiorhodospiraceae. They are different in their internal membranes structure and presence ...
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Atypical bacteria
Atypical bacteria are those bacteria that don’t stain with the staining as they don’t contain cell wall. These are microscopic organisms, are prokaryotic and can be observed through a microscope. Examples: Chlamydiaceae, Mycoplasmataceae Characteristics ...
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