Question

Which direct counting method is reported in terms of colony forming units (cfus)?

Answer 1

Plate counting method is reported in terms of colony forming units (cfus). Colony-forming unit (CFU, cfu, or CFU) is a unit used in microbiology to measure the number of viable microorganisms (bacteria, fungi, viruses, etc.) in a sample that can reproduce through binary fission under controlled conditions.

In contrast to microscopic analysis, which counts all cells, living or dead, counting with colony-forming units requires cultivating the bacteria. When counting colonies, it is unclear if the colony originated from one cell or a collection of cells because visual appearance of a colony in a cell culture to requires the significant growth.

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