Question

question 19
forming the cell walls of stems, leaves, and roots, what compound is the primary structural constituent of plant tissues?
enzymes
starch
cellulose
chlorophyll
protein

Explanation:

Cellulose is a polysaccharide that forms the main structural component of plant cell - walls, providing rigidity and support to plant tissues in stems, leaves, and roots. Enzymes are mainly for catalyzing biochemical reactions, starch is a storage polysaccharide, chlorophyll is for photosynthesis, and proteins have various functions but are not the main structural constituent of plant cell - walls.

Answer:

C. cellulose