Biology Question?

Question

What structures in Elodea cells are absent in epitheial cells?
And what structures visible in potato cells are absent in Elodea cells?
If you know any of the answers, please help me out.

Thanks!
Also what cell structures are found in Elodea cells but not onion cells?
Is the correct answer chloroplast?
Or is there something else?

Answer 1

Elodea cells have chloroplasts which are absent in epithelial cells.

Potato cells have amyloplasts (starch storage plastids), which are absent in elodea cells.

Answer 2

Elodea cells are plant cells and epithelial cells are animal cells. The structures would be cell walls which are not present in animal cells. Both Elodea and potatoes are plants so both have cell walls. Did you look at both under a microscope? If so, what could you see in the potato, but not in the Elodea. The question is asking what was visible to you when you looked at it, not what structures they have. If it helps, I only remember seeing cell walls and nuclei in the Elodea under the microscope. Vacuoles may be visible in a potato cell, but not in the Elodea.