Question

Why would it be considered a drawback for animal cells to contain cellulose?

Answer 1

the animal would become stiff and rigid and wouldn’t be able to do all the necessary thing it needs to do to survive like for example:

(-)Running

(-) eating

(-) Drinking

etc

Answer 2

Step-by-step explanation:
Plants have a rigid structure, the cell wall, which surrounds the cell membrane and serves to provide shape and protect them. If animals were to have a cell wall, they would become stiff which would impact their ability to move. Animals are motile and need flexibility.