Notes in MGY377

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MGY377 Lec 3

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Published	09/22/2023	The fastest and most frequently used method of quantifying bacteria is by measuring the {{c1::turbidity (cloudiness)}} of the growth media
Published	09/22/2023	Turbidity can be measured using a {{c1::spectrophotometer}}
Published	09/22/2023	The proper term for a turbidity measurement is {{c1::'optical density' or 'OD' }}
Published	09/22/2023	4 benefits of measuring turbidity
Published	09/22/2023	4 issues with counting cells by turbidity
Published	09/22/2023	How to find out how many living bacteria are in culture flask?
Published	09/22/2023	How to do serial dilutions/plating
Published	09/22/2023	What are some potential issues w counting cells by dilution plating?
Published	09/22/2023	how would you solve the issue of having a 'lawn' of bacteria in serial dilution plating?
Published	09/22/2023	When is a good time (before/at the end/during) your experiment to do serial dilution plating?
Published	09/22/2023	Who is Rebecca Lancefield?
Published	09/22/2023	What is the order of taxonomic ranks?
Published	09/22/2023	Visual features used in classification/identification of bacterial species?
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Published	09/22/2023	19041fd2641d4a188c98b3b5a3919026-ao-7
Published	09/22/2023	How are bacterial rod cell arrangements different from coccus?
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Published	09/22/2023	Gram-negative bacteria are {{c1::pink (resist staining)::what colour}}.
Published	09/22/2023	Gram-positive bacteria are {{c1::dark blue/purple::what colour}}.
Published	09/22/2023	How to do a microscopy stain
Published	09/22/2023	Gram stain procedure
Published	09/22/2023	What would happen if you forgot to decolorize with alcohol in gram stain procedure?
Published	09/22/2023	What would happen if you forgot to add iodine?
Published	09/22/2023	Differences in structure between gram + and - bacteria
Published	09/22/2023	Why do gram (+) and (-) stain differently?
Published	09/22/2023	How do gram - and + bacteria respond differently to antibiotics?
Published	09/22/2023	Gram + or gram -?: staphylococcus aureus
Published	09/22/2023	Gram (+) or (-)?: streptococcus
Published	09/22/2023	Gram (+) or (-)?: neisseria (gonorrhea)
Published	09/22/2023	Gram (+) or (-)?: haemophillus (pneumoniae)
Published	09/22/2023	Gram (+) or (-)?: listeria
Published	09/22/2023	Gram (+) or (-)?: clostridia (c.diff)
Published	09/22/2023	Gram (+) or (-)?: mycobacterium tuberculosis
Published	09/22/2023	Gram (+) or (-)?: e.coli
Published	09/22/2023	Gram (+) or (-)?: salmonella
Published	09/22/2023	Gram (+) or (-)?: yersinia (bubonic plague)
Published	09/22/2023	Gram (+) or (-)?: vibrio cholerae
Published	09/22/2023	Gene criteria for a good 'evolutionary clock'
Published	09/22/2023	Why is the ribosomal RNA sequence used for evolutionary comparisons?
Published	09/22/2023	The {{c1::16}}S rRNA of bacteria and {{c1::18}}S rRNA of eukaryotes are most widely used for evolutionary comparisons. They make up the majority of th…
Published	09/22/2023	The old kingdom system of classification was based on {{c1::morphology}}
Published	09/22/2023	Phylogenics assumes that all living organisms are developed from {{c1::the same ancestor and share some degree of evolutionary relatedness}}
Published	09/22/2023	Bacillus is used to describe both a cell morphology and a {{c1::genus}}
Published	09/22/2023	Carl Woese was the first person to {{c1::use SSU rRNA phylogeny to reveal the existence of a third kind of life (the Archaea), thus was first to sugge…
Status	Last Update	Fields