Multiple choice

What is the generation time of the species?

Directions: An egg omelet was left open at 37° C. 1000 cells of a particular species of bacterium contaminated the omelet. After 5 hours, the number of cells found was 1,00,000.

  1. 45 min

  2. 45.30 min

  3. 45.45 min

  4. 45.75 min

  5. 50 min
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

45.45 min. Generation time (G)= total time (t)/{3.3 log (final number of cells)/(initial number of cells)} = 300min/{3.3log100000/1000} = 300min/3.3log100 =300/3.3x2 =300/6.6 =45.45 min

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