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Explain the Escherichia - Characteristics of Bacteria?
It belongs to order Enterobacteriales. It is the best-studied organism present in the colon of humans and other warm-blooded animals. It is commonly employed in research and used as indicator in analysis of water and food for faecal contamination.
Escherichia is gram negative, non-sporulating straight rod, if motile peritrichously flagellated. These are facultative anaerobes, oxidase negative and have simple nutritional requirement. These carry out mixed acid fermentation. Escherichia sp. may play a nutritional role in intestine by synthesizing vitamins and also help in making large intestine anoxic. Usually Escherichia is not pathogenic, but some Escherichia sp. cause gastroenteritis, urinary tract diseases and also serious food borne diseases. Do you recall reading about E. coli O157:H7? This can cause serious form of illness.
Q. What is the fundamental structure of a virus? Viruses are constituted of genetic material RNA or DNA covered by a protein capsule also known as a capsid. Some viruses, like
NASA L CHAMBER - External nares are 2 in number, i.e., dirhynous. Situated at lower side of nose. Open into nasal chamber. Nasal chamber opens into pharynx by internal n
Define the term - innor mitochondrial membrane The innor mitochondrial membrane has about 60 different proteins associated with it. The outer membrane is associated with some
Limitations of Ecological Pyramids The pyramid of energy is a significant improvement over the previous two types of ecological pyramids, yet all of them overlook one or anot
How are the bacteria and the archaea different from all the other cellular microbes? -They have cell walls? -They can move? -They reproduce asexually? -They have no nucleus?
which bone of rabbit is like wing?
Which of the following represents two things that are identical? a.Two alleles for the same gene in a homologous chromosome pair. b.The sequences of DNA in the two sister chr
Explain about the freeze drying Method? The Techniques of freeze-drying have been developed over the past half-century for the purpose of preserving certain biological material
Though it has bees suggested that Doppler echocardiography may be useful for non-invasive determinations of stroke volume and cardiac output, it should be recognized that th4re
What is the endocrine function of the placenta? The placenta is not a permanent gland of the endocrine system but it also has endocrinal function. The placenta produces estroge
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