Question

When lower peel of the leaf is observed under the compound microscopr the colour of was redish pink due to?

Answer 1

The colour is reddish pink due to presence of safranin....

For explanation..

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.