Question

a scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell. what is unique about the outer layer of the onion cell compared to the skin cell?
o it contains proteins.
o it contains cellulose.
o it contains carbohydrates.
o it is selectively permeable.

Explanation:

Plant cells like onion cells have a cell wall made of cellulose, which is not present in human skin cells (animal cells). Carbohydrates and proteins are common in both cell - types, and both cell - types have selectively permeable membranes.

Answer:

It contains cellulose.