2. If you use a 1 µl inoculating loop to streak a plate from a urine...
2. If you use a 1 µl inoculating loop to streak a plate from a urine specimen and count 140 colonies on the plate after incubating overnight, how much bacteria was in the original sample in CFU/ml (please write your answer in scientific notation, 1.1 x 106 for example?
Homework Answers
1 ml = 1000 ul
1 ul contains 140 colonies
So colonies in 1 ml = 140 * 1000 = 14 * 104
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2. If you use a 1 µl inoculating loop to streak a plate from a
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Please help me solve these
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1. Placing a 0.5 ml sample of bacteria into a 4.5 ml sterile water, then transferring a 0.5 ml sample from that dilution to another 4.5 ml sterile water produce a dilution. 2. A technologist in a hospital lab who is trying to determine the concentration of Staphylococcus aureus in a urine sample completed a total plate count. After plating 0.1mL in duplicate, and incubating the plates at 37°C for 24...
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please help with whatever possible. thank you so much in
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