Questions about "Broth and Agar Slant Culture"
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| The small amount if growth on the end of an inoculating loop is called an ________. | inoculum
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| A flame-sterilized inoculating ________ is used to inoculate the medium. | loop
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| Aseptic technique is important to prevent self-infection and ________ of the culture medium. | contamination
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| In sterilizing your transfer loop, the ________ end must also be sterilized. | lower
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| Setting the culture cap down on the bench is a violation of ________ ________. | aseptic technique
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| When growth on or in a medium contains only a single species of microorganism, it is called a ________ ________. | pure culture
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| A term often used to describe cloudiness in broth media is ________. | turbidity
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| When a bacterial culture grows across the surface of a broth, the growth is referred to as a ________. | pellicle
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| Cells that settle to the bottom of a broth tube are referred to as ________. | sediment
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| Growth ocuring as clumps suspended in the broth is referred to as ________. | floculent
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| Growth around the margin of the surface of a broth tube but not across it is referred to as a ________. | ring
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| Name one of the ingredients in nutrient broth: | tryptone, peptone, beef extract, yeast extract, sodium chloride, etc.
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| An isolated population of bacteria growing on a solid medium is called a ________. | colony
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| A slant culture of an organism which is used to make other subcultures is called ________ culture. | stock
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| List three factors that might influence cultural characteristics of an organism growing on an gar medium: | surface moisture, motility of the cultured organism, amount of inoculum, nutrients available, temperature, oxygen
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| A word meaning "pigmentation" or "color" used to describe growth on an agar slant or colony is ________. | chromogenesis
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| The term used when a culture is placed at a particular temperature for a period of time is ________. | incubation
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| When an inoculated tube is compared to an uninoculated tube for signs of difference, the uninoculated tube serves as a ________. | control
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