Final answer:
Photosynthesis is important for building the structure of plant cells because it produces glucose, which is used to build cellulose for cell walls.
Step-by-step explanation:
Photosynthesis is an essential process for building the structure of plant cells. It is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. Glucose is used to build cellulose, which is a major component of plant cell walls. Cell walls provide structural support and protection to plant cells.
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