Moderate

The non-polar region of a phospholipid molecule consists of:

Correct answer: D. Fatty acids

  • A. Glycerol
  • B. Alcohol
  • C. Phosphoric acid
  • D. Fatty acids

Explanation

The hydrophobic tails of phospholipids are indeed fatty acids that are non-polar.

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About Biological Molecules

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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