Amylose differs from amylopectin in that amylose is
Correct answer: C. largely unbranched and coils into a helix
- A. highly branched through 1,6 glycosidic bonds
- B. a structural polymer of beta glucose
- C. largely unbranched and coils into a helix
- D. resistant to digestion by human amylase
Explanation
Amylose is an unbranched chain of alpha glucose that coils into a compact helix, while amylopectin carries frequent branches that give starch its many free ends for rapid enzyme attack. Cellulose, not amylose, is the beta glucose structural polymer that we cannot digest.
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About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
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