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Question
Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes with the help of a microscope, which sample would you carry and why?
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Solution
If you have to carry a sample from your home to the biology laboratory to demonstrate the presence of microbes under a microscope, the best sample to carry would be curd.
- Curd contains lactic acid bacteria (LAB), such as Lactobacillus, which are abundant and easy to observe under a microscope.
- It is safe to handle.
- The microbes in curd are actively involved in fermentation and are easy to culture or view under a microscope due to their high population.
- Curd microbes are economically useful and familiar examples of bacterial activity.
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