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Aseptic Technique – Growing Microorganisms

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  • Essay length: 1140 words
  • Submitted: 11/07/2002
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GCSE Living Things in their Environment

The first 200 words of this essay...

Aseptic Technique - Growing Microorganisms

Aim:

The aim for this topic is to grow microorganisms using the Aseptic technique.

Equipment:

Agar plate Wire loop

Heatproof mat Tissue

Safety goggles Bunsen burner

Disinfectant Beaker

Lactobacillus casei (bacteria) Masking tape

Matches Ethanol

Marker

Prediction:

I predict for this experiment that the most of the colonies of the bacteria would grow on the streak 1 because on the first number of scrapes onto the agar dish would give thousands and thousands of Lactobacillus casei bacteria, for the second number of scrapes would have probably only hundreds of bacteria. A disadvantage for having this many in the first number of scrapes is the amount of nutrition the bacteria would get from the agar so many of the bacteria would die out. There are still many bacteria left so the chances are that the first stroke would get the most colonies in the agar dish.

Risk Assessment:

Biological: The loop must be kept away from the face because is contains the bacteria that's used in the experiment. It

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