Sterilizing filters have a pore size of 0.22 ?m. Which of the following statements is true?

A. Bacterial cells are typically between 1-10 ?m and pass through the filter, whereas most viruses are between 20 and 200 nm and are therefore blocked.
B. Bacterial cells are typically between 1,000-10,000 nm and pass through the filter, whereas most viruses are between 20 and 200 nm and are therefore blocked.
C. Bacterial cells are typically between 1-10 ?m and are blocked by the filter, whereas most viruses are between 20 and 200 nm and therefore pass through.
D. Bacterial cells are typically between 1-10 nm and are blocked by the filter, whereas most viruses are between 20 and 200 ?m and therefore pass through.


Answer: C

Biology & Microbiology

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