Lipids Quiz
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5 questions, one answer each
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1. Which of these is the correct formula of the triglyceride from glycerol and three stearic acid molecules?
- A. C₅₇H₁₁₆O₉
- B. C₅₇H₁₁₀O₆
- C. C₅₇H₁₁₆O₆
- D. C₂₁H₄₄O₅
2. Which of these is true of an unsaturated fatty acid?
- A. It contains one or more C=C double bonds
- B. It has no carboxyl group
- C. It contains no hydrogen
- D. It has no hydrocarbon chain
3. How many ester bonds are in one triglyceride?
- A. One
- B. Two
- C. Four
- D. Three
4. Why is olive oil liquid at room temperature?
- A. Its chains are straight and pack closely
- B. It contains no fatty acids
- C. Its kinked chains pack less closely, so intermolecular forces are weaker
- D. It contains weak ester bonds
5. How many water molecules are used to hydrolyse one triglyceride completely?
- A. Three
- B. One
- C. Two
- D. Six