Since broth cultures of bacteria can reach high numbers of cells quickly, a series of answer experiments (one word) is required to obtain a countable plate from a standard plate count.

The answer is Dilutions

Bacterial culture is one of the laboratory examination that could be used to determine if a specimen contain bacteria. But it will hard to count the colony if the bacteria count is too high.

That is why the specimen of the culture need to be diluted to reduce the bacteria count of the specimen, so the result will be easier to count. The unit used would be colony forming unit(CFU) per milliliter.

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