Let us make an in-depth study of the influence of environmental factors on the growth of microorganisms. The below given article will help you to learn about the following things: 1. Chemical Factors 2. Physical Factors and 3. Biological Factors. A. Chemical Factors: (1) Nutrition; (2) Oxygen; (3) pH; (4) Surface active substances; (5) Phenols; creosols and derivatives; (6) Dyes; [...]
The upcoming discussion will update you about the difference between the exotoxins and endotoxins. Difference # Exotoxins: 1. Composed of portions, have the properties of enzymes, some have been obtained in crystalline state. 2. Easily diffuse from the cell into the surrounding medium. 3. Highly toxic, characterised by the sensitive affection of certain organs and tissues. 4. Thermolabile 5. During [...]
Let us make an in-depth study of the containers and swabs used for collection of specimens. Containers used for microbiological investigations should be sterile, leak-proof and strong. Each container should bear the name of the patient, from whom the specimen was collected and his case register number. The investigation requisition form should also accompany the specimen indicating the investigation required [...]