Starch forms a _ helical structure that can hold a _ molecule and gives a blue color:
Correct answer: B. Secondary, I₂
- A. Primary, I₂
- B. Secondary, I₂
- C. Tertiary, I₂
- D. Quaternary, I₂
Explanation
Starch forms a secondary helical structure that can trap iodine (I₂), resulting in a blue color.
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The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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