B1.1 Carbohydrates and lipids Quiz
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5 questions, one answer each
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1. Which polysaccharide is built from β-glucose?
- A. Starch
- B. Glycogen
- C. Cellulose
- D. Amylopectin
2. Hydrolysis of a disaccharide:
- A. Releases water
- B. Uses water to produce two monosaccharides
- C. Joins two monosaccharides
- D. Produces a polysaccharide
3. A fatty acid with two C=C double bonds is:
- A. Saturated
- B. Monounsaturated
- C. Polyunsaturated
- D. A steroid
4. Which describes a phospholipid?
- A. Glycerol, three fatty acids
- B. Glycerol, two fatty acids and a phosphate group
- C. Four fused carbon rings
- D. A chain of α-glucose
5. Why are oils from plants liquid at room temperature?
- A. They are mainly saturated
- B. They are mainly unsaturated, so their chains cannot pack closely
- C. They contain glycerol
- D. They are soluble in water