Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology) - 12th Edition - by Ted R. Johnson, Christine L. Case - ISBN 9780134605203
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Laboratory Experiments in Microbiology ...
12th Edition
Ted R. Johnson, Christine L. Case
Publisher: PEARSON
ISBN: 9780134605203

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Gram stain is a staining method that helps in the differentiation of gram-negative bacteria and...In a microbial culture, a contaminant is described as a foreign microbe, which is not desirable. In...The microbial growth requires different types of nutrients. The constitution of the nutrient media...The iodine test is the used to test the presence of starch. The starch turns the aqueous solution of...The process occurs in a lack of oxygen known as the anaerobic process as well as produces a...When gelatin is incubated at 35 degree Celsius, then to determine the hydrolysis after 35 degrees...Unfavorable environmental conditions such as excessive heat can cause the spoilage of food due to...Reduction is the process of gain ofelectrons by a chemical moiety. This results in the lowering of...The bacteria are simple prokaryotes and most of them are similar in terms of appearance and...Strict aerobes can only survive in the presence of oxygen, but they can thrive for a short duration...Microorganisms are adapted to survive in a wide range of temperatures. Temperature plays a crucial...Naturally it is difficult to find a biofilm containing a pure culture. A biofilm grows by attracting...Autoclaving is a moist heat sterilization method that uses high-pressure steam. This process works...The energy of gravitational radiation and electromagnetic radiation is called radiant energy. In...In the use-dilution test, a chemical is evaluated by its ability to kill 106to 108 dried Clostridium...Antibiotics eliminate the bacteria completely. They are categorized as bactericidal, that is potent...Waterless hand hygiene rubs are a proven alternative to hand washing agents and also, when there are...Nitrate reductase is molybdenoenzymes. It is responsible for catalyzing the nitrate assimilation...The anabolic mutants are not able to use thechemicals present in the glucose minimal salt media to...In case, the ampicillin resistant genes is labelled as fluorescent, then on ampicillin rich agar,...Natural transformation helps bacteria to gain an extra-chromosomal copy of DNA, called a plasmid...Ames test uses several kinds of bacterial strains as Salmonella typhimurium that carry a mutation in...Glucose-yeast extract method is used for the detection of presence of the yeast in the given sample....Algae and cyanobacteria can be considered as the indicators of productivity as well as pollution....Trypanosoma and Plasmodium both are found in the blood. Trypanosoma lives in the blood plasma or...The humans serve both as an intermediate host (larvae in the muscle) and a definitive host (adult...Sewage is a rich source of bacteria that infects the enteric bacteria like E. coli. Phages present...A viral infection is either localized or systemic depending on if it is limited to the affected area...Transmission of the disease is the process of spreading pathogen or causative agent between...The pathogens work by secreting enzymes that can decompose the structures like the cell wall that...Body fluids like blood, saliva, semen, vaginal fluids, mucus, transport nutrients to the cells and...ELISA (Enzyme Linked ImmunoSorbent Assay) is one of the widely used Immunoassays that detect the...In the experiment, initially patient’s serum is mixed with saline and wells are labeled and then...In Indirect ELISA first the antigen is added to the well and then the primary antibody is added....Mannitol salt agar comprises of majority of Sodium chloride, casein digest, animal tissue digest,...Blood agar is composed of defibrinated sheep blood, sodium chloride and nutrient agar. Based on the...S.salivarius makes use of the polysaccharides and gives rise to gum-drop colonies like blue ring....The gram negative rods that is oxidase-negative and that which ferments lactose can be subjected to...MacConkey is a differential solid media used for the isolation of enteric gram-negative bacteria...A colony can be defined as a visible mass of microbes that all originate from a single mother cell....A colony can be defined as a visible mass of microbes that all originate from a single mother cell....Yogurt is made by the acidic fermentation of the milk. The beta-galactosidase enzyme catalyzes the...The given amino acid is cysteine, whose molecular formula is C7H7NO2S. Ammonification process of...An enrichment media is media that contain nutrients that are specific and hence, essential for the...The micropipettes used in the laboratories are of three different sizes, P20, P200, and P1000. P20...The samples where serial dilution is occurring is shown below: 1 ml of the sample is mixed in 99ml...

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