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Introduction of Bacteria and Virus Bacteria are member of a large group of living unicellular microbes having size of cocci 0.5-1.0 µm while bacilli 1-10 µm×3-10µm which have cell walls but lacking an organized nucleus, including some that can cause disease like pneumonia, tuberculosis, food …
Introduction The virus has either DNA or RNA nucleic acid and RNA viruses have RNA nucleic acids. During the replication of these viruses, there are at least three types of RNA that must be synthesized. They are- the genome, a copy of the genome (copy …
Parasites and their infective stages, habitat, and causing diseases list is given as follows- S.No. Name of Parasites Infective stage Habitat Disease 1 Entamoeba histolytica Quadrinucleate cyst Large intestine Dysentery 2 Giardia lamblia Cyst Small intestine Diarrhea 3 a.Plasmodium vivexb.Plasmodium falciparumc.Plasmodium malariaed.Plasmodium ovale Sporozoa RBCs …
Introduction of Taenia solium and Taenia saginata Taenia saginata is the beef tapeworm, a worldwide distribution in countries where cattle are raised and beef is eaten. Taenia solium is the pork tapeworm and it is not as widely distributed as T. saginata. It occurs mainly …
Introduction of Serum and Plasma The serum is a clear yellow fluid that is separated when blood is allowed to clot freely while the plasma is yellowish and slight alkaline fluid, in which blood cells float. Differences between Serum and Plasma S. No Characteristics Serum …
Introduction of Hemolysis and Hemodigestion When the pure isolated colony of organism on a blood agar plate is exposed in bright transmitted light, we differentiate between hemolysis and hemodigestion since hemolysis is the process of killing blood cells by bacteria, and the area surrounding a …
Introduction of LF and NLF Gram-Negative Bacteria on MacConkey Medium MacConkey agar/ medium is recommended for use as a selective, differential, and indicator growth medium for the isolation of gram-negative bacilli including coliform organisms and enteric pathogens, on the basis of lactose fermentation. Peptones (meat …
Introduction of Haemophilus The genus Haemophilus is a pleomorphic Gram-negative coccobacilli fastidious bacteria and thus they do not grow on an ordinary medium like nutrient agar and they need chocolate agar to grow (H. influenzae) due to having X, V, and both X and V growth factors in it. …