Question

Why safranin is used to stain cells of an onion peel​

Answer 1

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• The onion cell is a plant cell that can be obtained by peeling off an onion.

• Onion peel is autotrophic because it is plant cell.

• Onion cellsexhibit a brick-like shape under the microscope. It has a cell wall, cell membrane, cytoplasm, nucleus, and a large vacuole.

• At the periphery of the cytoplasm, the nucleus is present.

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Answer 2

Safranin is a dye which can be taken up by a cell and it gives a pink colour. The cell as well as the background is transparent and it is difficult to visualise the cells as such. Staining imparts colour the cell or its components and enhances its contrast and makes it easier to see the structure of the cells.

I hope this helps.