Question

Why do we stain the onion peel or cheek cells before observing them under the
microscope?

Answer 1

stains are used to colour or highlight cells which makes easier to study cells and make cells clearly visible

therefore we stain the onion peel or cheek cells(somatic cells) before observing them under microscope

hope it is helpful

Answer 2

We stain the onion peel or cheek cells before observing them under the microscope because

• Staining is the procedure which is used broadly in microscopy for making the mount or specimen of the onion visible under the microscope.

• Staining onion peel or cheek cells makes the cell wall more apparent in an onion cell as it enhances contrast when it is seen through a microscope.

• Methylene Blue is a blue dye which is mainly used for colouring blood, bacteria, and acidic or protein-rich cell structures like the ribosomes, nucleus, and endoplasmic reticulum.

• Because of the staining method on onion, It makes it feasible to observe a large number of rectangular cells with certain cell walls and Cytoplasm also gets noticeable as a thin coating of dark-coloured material on the prominent surface of the cell wall.

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