Basic Microbiology 102 Views 1 Answers
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Sourav PanAugust 18, 2024

A landfill sample was analyzed by dilution and plating techniques for viable bacterial count. When one gram of the landfill sample was diluted 1 x 10 − 4 −4 (w/v), it yielded 400 CFU. The viable bacterial count (in million, rounded off to the nearest integer) in one gram landfill sample is _______.

A landfill sample was analyzed by dilution and plating techniques for viable bacterial count. When one gram of the landfill sample was diluted 1 x 10−4^{-4} (w/v), it yielded 400 CFU. The viable bacterial count (in million, rounded off to the nearest integer) in one gram landfill sample is _______.

 

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Sourav Pan. (2024, August 18). A landfill sample was analyzed by dilution and plating techniques for viable bacterial count. When one gram of the landfill sample was diluted 1 x 10 − 4 −4 (w/v), it yielded 400 CFU. The viable bacterial count (in million, rounded off to the nearest integer) in one gram landfill sample is _______.. Biology Notes Online. Retrieved from https://biologynotesonline.com/qa/a-landfill-sample-was-analyzed-by-dilution-and-plating-techniques-for-viable-bacterial-count-when-one-gram-of-the-landfill-sample-was-diluted-1-x-10-%e2%88%92-4-%e2%88%924-w-v-it-yielded-400-cfu/

Sourav Pan. "A landfill sample was analyzed by dilution and plating techniques for viable bacterial count. When one gram of the landfill sample was diluted 1 x 10 − 4 −4 (w/v), it yielded 400 CFU. The viable bacterial count (in million, rounded off to the nearest integer) in one gram landfill sample is _______.." Biology Notes Online, 18 August 2024, biologynotesonline.com/qa/a-landfill-sample-was-analyzed-by-dilution-and-plating-techniques-for-viable-bacterial-count-when-one-gram-of-the-landfill-sample-was-diluted-1-x-10-%e2%88%92-4-%e2%88%924-w-v-it-yielded-400-cfu/.

Sourav Pan. "A landfill sample was analyzed by dilution and plating techniques for viable bacterial count. When one gram of the landfill sample was diluted 1 x 10 − 4 −4 (w/v), it yielded 400 CFU. The viable bacterial count (in million, rounded off to the nearest integer) in one gram landfill sample is _______.." Biology Notes Online (blog). August 18, 2024. https://biologynotesonline.com/qa/a-landfill-sample-was-analyzed-by-dilution-and-plating-techniques-for-viable-bacterial-count-when-one-gram-of-the-landfill-sample-was-diluted-1-x-10-%e2%88%92-4-%e2%88%924-w-v-it-yielded-400-cfu/.

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Sourav PanMay 15, 2025

Answer: 4 million

textbf{Explanation:} The viable count is calculated by multiplying the colony-forming units (CFUs) by the dilution factor. In this case: 400 times 10^4 = 4,000,000 text{ CFU/g} which is equivalent to 4 million CFU/g.

Cite this post:

Sourav Pan. (2024, August 18). A landfill sample was analyzed by dilution and plating techniques for viable bacterial count. When one gram of the landfill sample was diluted 1 x 10 − 4 −4 (w/v), it yielded 400 CFU. The viable bacterial count (in million, rounded off to the nearest integer) in one gram landfill sample is _______.. Biology Notes Online. Retrieved from https://biologynotesonline.com/qa/a-landfill-sample-was-analyzed-by-dilution-and-plating-techniques-for-viable-bacterial-count-when-one-gram-of-the-landfill-sample-was-diluted-1-x-10-%e2%88%92-4-%e2%88%924-w-v-it-yielded-400-cfu/

Sourav Pan. "A landfill sample was analyzed by dilution and plating techniques for viable bacterial count. When one gram of the landfill sample was diluted 1 x 10 − 4 −4 (w/v), it yielded 400 CFU. The viable bacterial count (in million, rounded off to the nearest integer) in one gram landfill sample is _______.." Biology Notes Online, 18 August 2024, biologynotesonline.com/qa/a-landfill-sample-was-analyzed-by-dilution-and-plating-techniques-for-viable-bacterial-count-when-one-gram-of-the-landfill-sample-was-diluted-1-x-10-%e2%88%92-4-%e2%88%924-w-v-it-yielded-400-cfu/.

Sourav Pan. "A landfill sample was analyzed by dilution and plating techniques for viable bacterial count. When one gram of the landfill sample was diluted 1 x 10 − 4 −4 (w/v), it yielded 400 CFU. The viable bacterial count (in million, rounded off to the nearest integer) in one gram landfill sample is _______.." Biology Notes Online (blog). August 18, 2024. https://biologynotesonline.com/qa/a-landfill-sample-was-analyzed-by-dilution-and-plating-techniques-for-viable-bacterial-count-when-one-gram-of-the-landfill-sample-was-diluted-1-x-10-%e2%88%92-4-%e2%88%924-w-v-it-yielded-400-cfu/.

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