Question

Describe the method of preparation of slide to observe bacteria in curd in your school laboratory​

Answer 1

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The method is given below

• The procedure that we performed to observe Lactobacillus bacterium to be observed in the laboratory is:

• First, we take some warm milk in a bowl then we add a small amount of curd into it and keep it in an area slightly warmer.

• Then leave it for some time.

• Then after the curd is formed dilute it and then we stain the bacteria by methylene blue or safranin to see the bacteria as it is colorless.

• Then we prepare the slide and observed the bacteria under a microscope.

• The bacteria are rod-shaped or cocci shaped.

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