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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?
- Compare 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 fingersMacConkey agar inhibits the growth of Gram-positive bacteria while encouraging the growth of Gram-negative bacteria. It also can determine if some bacteria use lactose. Define what type(s) of media MacConkey agar is, using as many terms in the answer list as are applicable.explain methods for cleaning beans using flat bed screen and drum spray cleaner
- Which is more Suitable for long-term storage: agar slant or plate? Explain why?Explain the rational of using saponification-solvent extraction to extract pyrene from milkWhat are the difference in the movement of microorganisms under wet mount from hanging drop technique? Provide a descriptive explanation.
- Explain the effect that environmental factors exert on the growth and development of an algal batch culture.Regarding turbidity, which of the following statements is true? Group of answer choices Decreased bacterial concentration results in a turbid specimen due to increased light transmission Increased bacterial concentration results in a turbid specimen due to decreased light transmission. Increased bacterial concentration results in a clear specimen due to decreased light transmission.Explain the principle involved in O.D determination of microbial populations using the spectrophotometer