Microbiology

Biochemical Test of Clostridium tetani

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Basic Characteristics Properties (Clostridium tetani) Capsule Negative (-ve) Catalase Negative (-ve) Flagella Peritrichous Gas Positive (+ve) Gelatin Hydrolysis Positive (+ve) Gram Staining Gram-stain-positive, but become Gram-stain-negative after approximately 24 h incubation. Growth in 20% Bile Negative (-ve) Growth in 6.5% NaCl Negative (-ve) H2S Positive (+ve) Hemolysis Positive (+ve) Indole Variable Motility Positive (+ve) Nitrate … Read more Biochemical Test of Clostridium tetani

Biochemical Test of Streptococcus agalactiae

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Basic Characteristics Properties (Streptococcus agalactiae) CAMP Positive (+ve) Capsule Positive (+ve) Catalase Negative (-ve) Coagulase Negative (-ve) Flagella Non-flagellated Gram Staining Positive (+ve) Hemolysis Beta Hemolysis Motility Non-motile OF (Oxidative-Fermentative) Facultative anaerobes Oxidase Negative (-ve) PYR Negative (-ve) Shape Cocci Spore Non-sporing Urease Negative (-ve) VP (Voges Proskauer) Variable Fermentation of Adonitol Negative (-ve) Arabinose … Read more Biochemical Test of Streptococcus agalactiae

Biochemical Test of Streptococcus pneumoniae

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Characteristics Basic Characteristics Properties (Streptococcus pneumoniae) Bile Solubility Positive (+ve) Catalase Negative (-ve) Gram Staining Positive (+ve) Hemolysis Alfa Hemolysis Motility Non-motile OF (Oxidative-Fermentative) Facultative anaerobes Oxidase Negative (-ve) Shape Diplococci Spore Non-sporing Urease Negative (-ve) VP (Voges Proskauer) Negative (-ve) Fermentation of Arabinose Positive (+ve) Arbutin Negative (-ve) Dulcitol Negative (-ve) Erythritol Positive (+ve) … Read more Biochemical Test of Streptococcus pneumoniae

Biochemical Test of Escherichia coli (E. coli)

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Basic Characteristics Properties (E. coli) Capsule Capsulated Catalase Positive (+ve) Citrate Negative (-ve) Coagulase Negative (-ve) Flagella Flagellated Gas Positive (+ve) Gelatin Hydrolysis Negative (-ve) Gram Staining Negative (-ve) Growth in KCN Negative (-ve) H2S Negative (-ve) Hemolysis Negative (-ve) Indole Positive (+ve) Motility Motile MR (Methyl Red) Positive (+ve) Nitrate Reduction Positive (+ve) OF … Read more Biochemical Test of Escherichia coli (E. coli)

Hands-on Experiments to Teach Kids about Chemical Reactions

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What are chemical reactions? Chemical reactions refer to a process in which one or more chemical substances are changed into one or more other chemical substances which have unique physical and chemical properties of their own. It is important to note that chemical reactions cause changes in the physical and chemical characteristics of the substances … Read more Hands-on Experiments to Teach Kids about Chemical Reactions