Elodea is the correct plant being observed under the microscope (not Egeria).
Unstained Cells: Nuclei are not visible in unstained Elodea cells.
Staining: By staining the plant cells, the nuclei become visible, allowing for identification.
Methylene Blue:
It is a positively charged stain often used to visualize cellular components.
If Elodea cells are stained with methylene blue, the nuclei can be observed clearly.
Green organelles are visible in the cells, indicating healthy Elodea cells. Chloroplasts are involved in photosynthesis.