[Campbell Biology P.150] According to the diagram, what is the primary function of the plant... | Practice Question
According to the diagram, what is the primary function of the plant cell wall, and what is it primarily composed of?
A: Maintains cell's shape and protects from mechanical damage; made of cellulose, other polysaccharides, and protein
B: Regulates substance passage into and out of the cell; primarily composed of lipids
C: Site of ATP synthesis and cellular respiration; primarily composed of DNA
D: Stores genetic information and controls cell activities; primarily composed of carbohydrates
Explanation
The diagram explicitly states that the cell wall is the 'outer layer that maintains cell's shape and protects cell from mechanical damage' and is 'made of cellulose, other polysaccharides, and protein'.