Polysaccharides Quiz
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5 questions, one answer each
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1. Which polysaccharide is the energy store in animal cells?
- A. Starch
- B. Cellulose
- C. Amylose
- D. Glycogen
2. What is the positive result of the iodine test for starch?
- A. Blue to brick-red
- B. Orange-brown to blue-black
- C. Colourless to white
- D. Blue to purple
3. Why is glycogen's branching an advantage?
- A. It makes glycogen soluble
- B. It gives many ends so glucose is released quickly
- C. It makes strong fibres
- D. It makes glycogen from β-glucose
4. What gives cellulose its strength?
- A. Branching of the chains
- B. Hydrogen bonds between parallel chains forming microfibrils
- C. Peptide bonds
- D. Its solubility in water
5. Why can starch be stored in cells without changing their water potential?
- A. It is small and soluble
- B. It is a monosaccharide
- C. It is large and insoluble
- D. It is made from β-glucose