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microbiology first year
14 posts
STUDY OF ANTIBIOTIC SUSCEPTIBILITY TEST
THEORY: Antibiotic: A medicine (such as penicillin or its derivatives) that inhibits the growth or destroys microorganisms. The…
STUDY OF STARCH HYDROLYSIS TEST
THEORY: Starch chemically a homoglycan is a complete carbohydrate i.e. polysaccharide which consists of a mixture of amylose…
STUDY OF TRIPLE SUGAR IRON AGAR TEST (TSIA TEST)
Introduction: Originally described by FF. Russel, the (TSIA) triple Sugar. Iron Agar test is used to identify enteric…
STUDY OF UREASE AND NITRATE REDUCTION TEST
Introduction: In this test a simple ability of the organism is exploited that is to produce an enzyme…
STUDY OF METHYL RED AND VOGES PROSKAUER TEST
Methyl Red Test: Micro-organisms when grown in MR-VP or clark and lub’s medium containing a limited amount of…
STUDY OF INDOLE TEST AND CITRATE UTILISATION TEST
Introduction: The biochemical (physiological) reactions of the miens organisms are very much important in species identification. Differentiation of…
STUDY OF GRAM STAINING.
Introduction: In 1884, a Danish Bacteriologist Hans Christian Gram developed a gram staining technique. Gram staining is the…
STUDY OF SPORE STAINING
Introduction: The main aim of this experiment is to distinguish between vegetative cells and endospores. Members of anaerobic…
STUDY OF CATALASE AND OXIDASE TEST
Introduction: The biochemical reactions of the microorganisms are very much important in species identification. Since all physiological reactions…
STUDY OF NEGATIVE STAINING
THEORY: The main purpose of negative staining is to study the morphological shape, size and arrangement of the…