A pure culture would include which of the following: a sputum swab, a single colony on a streaked plate, the first phase of a plate streaked from sputum swab, a slant that is used as a subculture.
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A pure culture contains only one type of microorganism, free from contamination by other species. Show more…
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Given that the following plate is supposed to be an isolation streak for singles, select all that apply:
Dominador T.
1. Which of the following instruments are used to perform a streak plate. a. Incinerating loop b. Inoculating wire loop c. Plastic loop d. Sterile Plastic spreader 2. Cloudiness is a sign that bacteria have grown in a __________ after inoculation and incubation. a. streak plate b. tube of nutrient broth c. Gram stain d. simple stain 3. Isolation of pure culture refers to __________ a. purification of culture b. introduction of inoculum c. separation of a single colony d. to grow microorganisms on a surface 4. Streaking plate – the original culture is directly a. diluted across an agar surface b. concentrate across an agar surface c. normalize across an agar surface d. all of the above
Rolly S.
Performing a second streak plate from an isolate from the first streak plate will ensure that a co-culture is used for subsequent analysis. This ensures that a clonal colony, where the cells are not all identical in genetic composition, is used for subsequent analysis. It also ensures that a consortium of bacteria is maintained.
Sri K.
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