Multiple choice

Which of the following is not a method of isolation of microbes?

  1. Pour plate method

  2. Streak plate method

  3. Serial dilution method

  4. Sterilisation method

  5. Enrichment culture technique
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sterilization method is not a isolation method of microbes. A steam temperature of 121oC is usually maintained for wet sterilization in autoclave at pressure 15 lbs/inch2 (1.05 kg/sq.cm). Fifteen minutes of duration is sufficient for sterilization. Culture media are wet sterilized because they are either liquid or semi-solid gels containing water.

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