Water and carbohydrates Quiz
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5 questions, one answer each
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1. What causes the dipole in a water molecule?
- A. Hydrogen is more electronegative than oxygen
- B. Oxygen attracts the shared electrons more strongly than hydrogen does
- C. Water contains ionic bonds
- D. Water has an unpaired electron
2. Which disaccharide is made from glucose and galactose?
- A. Sucrose
- B. Maltose
- C. Lactose
- D. Glycogen
3. Which feature of amylose makes it compact?
- A. It coils into a helix
- B. It is highly branched
- C. It is soluble
- D. It contains fructose
4. Why can glycogen release glucose faster than amylose?
- A. It is more soluble
- B. It contains more fructose
- C. It has no glycosidic bonds
- D. It has more branches, so more ends for enzymes to act on
5. A student heats a sugar solution with Benedict's reagent and it stays blue. What can she conclude?
- A. It contains starch
- B. It contains no reducing sugar
- C. It contains a lot of glucose
- D. It must contain sucrose