Question

a plant cell synthesizes cellulose from glucose. energy storage metabolism for energy protein synthesis structural support

Explanation:

Cellulose is a major component of the plant - cell wall, providing structural support to plant cells. It is not mainly for energy storage (starch is for energy storage in plants), not directly involved in metabolism for energy in the same way as glucose - related metabolic pathways, and not related to protein synthesis.

Answer:

structural support