In the viable plate count method, a measured sample of a culture is evenly spread across an agar surface and incubated. Each represents one from the sample.

Colony; Cell

Explanation: Viable plate count is used to estimate the number of viable cells (cells which are active and can be used successfully) a measured sample of a culture is evenly spread across an agar surface and incubated. The spread plate relies on bacteria growing a colony on a nutrient medium so that the colony becomes visible to the naked eye and the number of colonies on a plate can be counted. Each colony, that is several organisms leaving together in close association. With each colony representing one cell in the sample.

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