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Explain the imporance of using a control tube with only broth when measuring turbidity in a spectrophotometer.
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- Explain the importance of using a control tube with only broth when measuring turbidity in a spectrophotometer.With the aid of a labelled diagram, outline the principle of the oil immersion objectivegive one reason why is it necessary to keep stirring the agar medium mixture in a beaker when heating in a hotplate?
- Give the importance of using cedar wood oil with the oil immersion objectiveCompare the relative abundance of microbial growth on the agar surface touched by unwashed and washed fingers. Note: the upper portion are washed fingers whereas, the lower portion are unwashed fingersMake an accurate colored of what you observed on the mannitol salt agar plate.