This post was most recently updated on May 10th, 2017Indole test is used to determine the ability of an organism to split amino acid tryptophan to form the compound indole. Tryptophan is hydrolysed by tryptophanase to […]
This post was most recently updated on October 17th, 2018 The identification of bacteria by serologic tests is based on the presence of specific antigens. Which of the following bacterial components is least likely to […]
This post was most recently updated on March 28th, 2020 A. Aerobic Bacteria Main Principle: Provide Oxygen Atmospheric condition is generally satisfactory for culture of aerobes or facultative anaerobes but for the growth of many […]
This post was most recently updated on September 10th, 2019Membrane filters have a known uniform porosity of predetermined size (generally 0.45 µm ) sufficiently small to trap microorganisms.Using the membrane filter technique, sample is passed through the […]
This post was most recently updated on August 26th, 2019 Once a microorganism has been isolated and grown in pure culture, it becomes necessary to maintain the viability and purity of the microorganism by keeping […]
This post was most recently updated on February 16th, 2017 Enumeration of microorganisms is especially important in dairy microbiology, food microbiology, and water microbiology. Direct Microscopic count/ Total cell count Direct microscopic counts are […]
This post was most recently updated on August 26th, 2019Culture media contain nutrients and physical growth parameters necessary for microbial growth. All microorganisms cannot grow in a single culture medium and in fact many can’t […]
This post was most recently updated on July 25th, 2016 If a scientist actively researches the frequency and distribution of the diseases, he is said to be a: a. Mycologist b. Immunologist c. Etiologist d. […]
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