Question

Why are staining dyes used

Answer 1

Answer:

To easily view the minute particles, cell organelles, etc.

Explanation:

For example,

Janus green is a stain used to dye mitochondria.

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Answer 2

Because cells typically have negatively charged cell walls, the positive chromophores in basic dyes tend to stick to the cell walls, making them positive stains. Thus, commonly used basic dyes such as basic fuchsin, crystal violet, malachite green, methylene blue, and safranin typically serve as positive stains.