1:100 1:1000 1:10,000 1:100,000 1 ml 1 ml 1 ml 1 ml 1:100 (10-) 1:1000 (10-) 1:10,000 (104) 1:100,000 (10-8) that appears to have between 30 and 300 colonies. Count the exact number of colonies a the colonK Counter
1:100 1:1000 1:10,000 1:100,000 1 ml 1 ml 1 ml 1 ml 1:100 (10-) 1:1000 (10-) 1:10,000 (104) 1:100,000 (10-8) that appears to have between 30 and 300 colonies. Count the exact number of colonies a the colonK Counter
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
![1 ml
1 ml
1 ml
1 ml
1 ml
Original
inoculum
9 ml broth
in each tube
Dilutions
1:10
1:100
1:1000
1:10,000
1:100,000
1 ml
1 ml
1 ml
1 ml
1 ml
Plating
1:100,000
(10-5)
1:10
1:100
1:1000
(10-2)
1:10,000
(104)
(10-1)
(10-9)
1.Choose a plate that appears to have between 30 and 300 colonies. Count the exact number of colonies
on that plate using the colony counter.
Colony Count = 64
2. Calculate the number of CFUS per ml of original sample as follows:
number of CFUS per ml of sample = (number of colonies) X (dilution factor of the plate counted)
= The number of colonies
= The dilution factor of plate counted
= The number of CFUS per ml](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F68a1e919-ff6e-4b9a-9bf3-62c99e6ad855%2F39a39bd7-1554-483b-8abc-5f4b095c1ead%2Fw8qxo05_processed.png&w=3840&q=75)
Transcribed Image Text:1 ml
1 ml
1 ml
1 ml
1 ml
Original
inoculum
9 ml broth
in each tube
Dilutions
1:10
1:100
1:1000
1:10,000
1:100,000
1 ml
1 ml
1 ml
1 ml
1 ml
Plating
1:100,000
(10-5)
1:10
1:100
1:1000
(10-2)
1:10,000
(104)
(10-1)
(10-9)
1.Choose a plate that appears to have between 30 and 300 colonies. Count the exact number of colonies
on that plate using the colony counter.
Colony Count = 64
2. Calculate the number of CFUS per ml of original sample as follows:
number of CFUS per ml of sample = (number of colonies) X (dilution factor of the plate counted)
= The number of colonies
= The dilution factor of plate counted
= The number of CFUS per ml
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