Which method is most accurate for measuring bacterial populations in samples where distinguishing between living and dead cells is important? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Turbidity measurements b Serial dilution followed by viable plate count c Direct microscopic counts d Dry weight measurement
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Which of the following methods would be best for measuring the growth of a bacterial species that tends to form large clumps or aggregates which rapidly sediment to the bottom of a liquid culture? A) viable plate count method B) membrane filtration method C) direct microscopic count method D) dry weight method E) turbidity readings
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Which of the following is the best technique for counting only viable cells? Answer choices a. direct microscopic count b. spread plate c. spectrophotometer d. chemostat e. dry weight measurements
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Which of the following statements about measuring bacterial growth is FALSE? A direct count measures the number of cells in a given volume under the microscope. A viable count is the most accurate way to measure the number of living cells in a culture. It involves incubating bacteria, counting colonies, and using an equation to calculate. All of the answers are correct. Turbidometry uses a spectrophotometer to measure the amount of light that passes through a culture: the less light, more cells.
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