問題一覧
1
What are the different types of Culture?
Pure culture, Mixed culture, Stock culture
2
What are the Classification of Culture Media According to Consistency?
Liquid medium, Semi-solid medium, Solid medium
3
What are the Classification of Culture Media According to Composition?
Synthetic or defined medium, Non-synthetic or complex medium, Tissue culture medium
4
What are the Classification of Culture Media According to Dispensing or Distribution method for medium?
Plated media, Tube media
5
Type of media which are distributed into the dish or plate
Plated media
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Type of media which are prepared as either liquid, slant, butt and slant, or butt.
Tube media
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What are the Classification of Culture Media According to Use?
Simple media, Enrichment media, Enriched and non-selective media, Differential media, Selective media, Special media
8
What are the 3 types of hemolysis?
Alpha hemolysis, Beta hemolysis, Gamma hemolysis
9
► Mixture of nutrients such as carbon, nitrogen, sulphur, phosphorus, hydrogen, oxygen, and buffers. ► Inhibitory agents like dyes, salts, and antimicrobial added to facilitate the isolation of the desired organism while suppressing the growth of other organisms present in the sample.
Culture Media
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Type of culture which is composed of only one specie.
Pure culture
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Type of culture which composed of more than one species
Mixed culture
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Type of culture which composed of several species contained in a separate culture medium. Should be grown in large volume of broth and divide into small freezer vials.
Stock culture
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-Does not contain any amount of agar -Allows the growth of aerobes, anaerobes and facultative anaerobes.
Liquid medium
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-contains 0.5% to 1% agar - used to observe bacterial motility, detect indole and sulfide production
Semi-solid medium
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Contains 2% to 3% agar
Solid medium
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-Type of culture media wherein components are known. - Used for research purposes as either liquid or solid medium -Preferred for the isolation of cyanobacteria and chemo organotrophs
Synthetic or defined medium
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- substances are unknown (peptones, meat, and yeast extracts) -very useful for isolation of medically significant bacteria
Non-synthetic or complex medium
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This type of media is used for obligate intracellular bacteria (Rickettsia and Chlamydia).
Tissue culture medium
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-It is routinely used in the laboratory and without addtional supplements. -Support the growth of most non-fastidious bacteria -Usually composed of meat and soybean extract
Simple media
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-It is used to propagate the growth of a certain group of bacteria from a mixture of organisms. -contains specific nutrients and without additional supplements -can also be used as a supplement to agar plates to detect aerobes, anaerobes and microaerophiles (thioglycollate)
Enrichment media
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-With additional supplements such as blood, vitamins and yeast extract, which are necessary for the growth of fastidious organisms -These are solid type media
Enriched media and non-selective media
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It differentiate the haemolytic pattern of bacteria
BAP
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It is used for the recovery of Haemophilus species
CAP
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They are used for isolation of fastidious organisms
BAP and CAP
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It contains general nutrients with 5% - 10% blood
Blood agar
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It shows complete lysis of red cells resulting in complete clearing around the colonies.
Beta hemolysis
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Incomplete lysis of red cells, producing a greenish discoloration of the blood agar around colonies.
Alpha hemolysis
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Shows no hemolysis, resulting in no change in the medium
Gamma hemolysis
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It allows the visualization of metabolic differences between groups of bacteria
Differential media
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What is the pH indicator in MAC that detects the fermentation of sugar and eventually the production of acid?
Neutral red
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Incorporated with antibiotics, dyes or chemicals to inhibit the growth of other organisms while promoting the growth of desired organism.
Selective media
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What are the types of selective media?
Thayar- Martin agar, Mannitol Salt agar, MacConkey's agar, Lowenstein- Jensen Medium, Sabouraud's dextrose agar
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Isolation of fungi
Sabouraud's dextrose agar
34
It contains antibiotics trimethoprim, nystatin, vancomycin, and colistin. It is used for the isolation of Neisseria.
Thayer- Martin agar
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It contains 10% NaCl and used for the isolation of Staphylococcus aureus.
Mannitol salt agar
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It promotes growth of gram-negative bacteria, primarily belongs to the family Enterobacteriaceae. Inhibit the growth of gram-positive bacteria through the addition of bile salts.
MacConkey's agar
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It is used to recover Mycobacterium tuberculosis.
Lowenstein-Jensen medium
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It is used to isolate bacteria with specific growth requirements
Special media
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It is made up of whole egg and malachite green which supports the growth of mycobacteria.
Lowenstein- Jensen (LJ)
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It is used for isolation of Vibrio
TCBS