BSC 242 Lecture Notes - Lecture 1: Cellulose, Mycology, Immunology
25 Aug 2016
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Document Summary
Microorganisms: organisms that are too small to be seen with the unaided eye. Produce products used in manufacturing and disease treatment (cellulase & insulin) Knowledge of microorganisms allows humans to prevent food spoilage and prevent disease occurrence. Led to aseptic techniques to prevent contamination in medicine and in microbiology laboratories. Each organism has two names (genus & specific epithet) After the first use, scientific names may be abbreviated with the first letter of the genus and the specific epithet. Escherichia coli and staphylococcus aureus are found in the human body: coli is found in the large intestine, and s. aureus is on the skin. Enegery: uses organic chemicals, inorganic chemicals, or photosynthesis. Consist of masses of mycelia, which are composed of filaments called hyphae. May be motile via pseudopods, cilia or flagella. Coat may be enclosed in a lipid envelope. Replicated only when they are in a living host cell. Ancestors of bacteria were the first life on earth.
