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? A- It contains proteins. B- It contains cellulose. C- It contains carbohydrates. D- It is selectively permeable.

Answer 1

option B is the correct answer

CELLULOSE

Answer 2

Option (B) It contains cellulose.

Explanation:

The cellulose presence makes the onion skin more unique compared to human skin. The human skin is made of a cell layer with proteins and carbohydrates.

The cellulose in plant cells is forms the strong layer and provides mechanical support to the plant. They form the thick layer. The cellulose is easily digested by using the enzyme cellulose. Hence plant is different from animal cells based on the presence of cellulose.