Question

a key difference between plant and animal cells is the presence of a cell wall in plants. what is the primary organic molecule that composes the plant cell wall?
peptidoglycan
phospholipid
chlorophyll
cellulose

Explanation:

Peptidoglycan is in bacterial cell walls. Phospholipid is in cell membranes. Chlorophyll is for photosynthesis. Cellulose is the main organic molecule in plant cell walls.

Answer:

Cellulose