Question

how does starch compare to cellulose? complete the sentences. plants use cellulose for ​. they use starch, such as amylopectin, for ​. unlike cellulose, the long chains of glucose in amylopectin form ​. (image labels: amylopectin structure (starch), cellulose structure, branched starch, cellulose fibers)

Explanation:

• Cellulose function: Cellulose is a major component of plant cell walls, providing rigidity and structural support.
• Starch (amylopectin) function: Starch (including amylopectin) is synthesized by plants to store energy, which can be broken down later.
• Amylopectin structure vs. cellulose: Cellulose has linear, unbranched glucose chains (forming strong fibers), while amylopectin has branched glucose chains (allowing compact storage and quick energy release).

Answer:

1. Plants use cellulose for structural support (e.g., cell walls).
2. They use starch, such as amylopectin, for energy storage.
3. Unlike cellulose, the long chains of glucose in amylopectin form branched structures (or a branched polymer).