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Multiple Choice Question Of the following polysaccharides, which is digested most rapidly? amylose lignins cellulose amylopectin

Ask by Weaver Li. in the United States
Feb 14,2025

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Amylopectin is digested most rapidly.

Solution

The correct answer is amylopectin. Explanation: Amylopectin is a branched-chain form of starch, which provides more sites for enzymatic attack, making it more rapidly digested compared to the linear chain amylose. Cellulose is not digested by human enzymes, and lignins are complex polymers that are indigestible.

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Did you know that amylopectin, one of the two main components of starch, has a branched structure that allows it to be digested more quickly than its partner, amylose, which is linear? This unique configuration means enzymes can access more endpoints of the molecule at once, speeding up the breakdown into glucose! In real-world applications, understanding how different polysaccharides digest can influence dietary choices. For instance, athletes often seek quick energy sources, so foods rich in amylopectin, like white rice and potatoes, are great for fast fuel, while those needing stable energy may prefer foods high in amylose, like whole grains.

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