Question

b) How would you experimentally
observe Nucleus in cheek cells.
Explain with a neat labelled
diagram?​

Answer 1

Answer:

To Prepare Stained Temporary Mount of Human Cheek Cells

Materials Required



Real Lab Procedure

Gently scrape the inner side of the cheek using a toothpick, which will collect some cheek cells.Place the cells on a glass slide that has water on it.Mix the water and the cheek cells using a needle and spread them.Take a few drops of Methylene blue solution using a dropper and add this to the mixture on the slide.After 2-3 minutes remove any excess water and stain from the slide using a blotting paper.Take a few drops of glycerine using a dropper and add this to the test mixture.Take a clean cover slip and lower it carefully on the mixture with the aid of a needle.Using a brush and needle, press the cover slip gently to spread the epithelial cells.Remove any extra liquid around the cover slip using a blotting paper.Place this glass side on the stage of the compound microscope and view it.

Observations

A large number of flat and irregular-shaped cells are observed.The cells do not have a cell wall. However, each cell has a thin cell membrane.A deeply stained nucleus is observed at the centre of each cell.No prominent vacuoles are observed in the cells.

Conclusion

As the cells observed do not have a cell wall, nor a prominent vacuole, the cells of the specimen on the slide are animal cells

Answer 2

Answer:

please mark as brainleast

Explanation:

Gently scrape the inner side of the cheek using a toothpick, which will collect some cheek cells. Place the cells on a glass slide that has water on it. Mix the water and the cheek cells using a needle and spread them. Take a few drops of Methylene blue solution using a dropper and add this to the mixture on the slide