This polymer that contains long strings of glucose. What is it?

Question

BlackTom AI · Accepted Answer

The question asks about a polymer that contains long strings of glucose. This points to a carbohydrate polymer formed by glucose units linked together. 
Since the provided answer indicates starch, we can reason through what starch is: starch is a storage polysaccharide in plants composed mainly of two glucose polymers, amylose and amylopectin, with long chains of glucose subunits linked by α-1,4 and α-1,6 glycosidic bonds in amylopectin. This structure gives starch its role as an energy reserve in plant cells. 
Now, evaluating typical competitors in this domain helps sharpen understanding: if the options included glycogen, that would also be a glucose polymer but is the animal storage form, not plant; cellulose is another glucose polymer but with β-1,4 linkages that form straight chains used for plant cell walls, not energy storage, and it is not soluble. If any option suggested chitin, that would be a polymer of N-acetylglucosamine, not just glucose. If amylose/amylopectin or starch were present as options, they would be directly aligned with the description of long glucose strings in plants. 
Because the prompt’s provided answer is starch, the correct choice aligns with the concept of a glucose-based storage polysaccharide in plants. 
If there were multiple choices, each would need its own justification: for a glycogen option, I would note it’s the animal equivalent of starch, with more branching and shorter chains; for cellulose, I’d emphasize its β-linkages and structural role; for chitin, I’d point out its different monomer and function. 
In summary, the polymer described as long strings of glucose in plants is starch, the plant storage polysaccharide formed from glucose units in amylose and amylopectin structures.

fshn_120_120251_244864 CHAPTER 5 DEFINITION INQUISITION (DI) - 3 TAKES - HIGHEST SCORE COUNTS

This polymer that contains long strings of glucose. What is it?

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