Character not found in waxes:
Correct answer: C. Have long-chain alkanes
- A. An even number of carbon atoms
- B. Protect plants from water loss
- C. Have long-chain alkanes
- D. Water barrier substance
Explanation
The correct answer is to have long-chain alkanes. Waxes are not characterized by having long-chain alkanes. Instead, they are complex mixtures of long-chain fatty acids and alcohols. Option A is incorrect because waxes often have an even number of carbon atoms. Option B is incorrect, as waxes indeed protect plants from water loss. Option D is incorrect since waxes serve as effective water barrier substances.
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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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