AS Biology 2.1.2 Biological Molecules

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1. Isomers are …?

  • Atoms of the same element with different numbers of neutrons and different masses
  • Molecules with the same formula, but whose atoms are arranged differently in space
  • Molecules with a different formula, but whose atoms are arranged in the same way in space
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2. Give two properties of a disaccharide

  • sweet, soluble
  • sweet, insoluble
  • strong, insoluble

3. What is the product of beta galactose + alpha glucose?

  • Cellobiose
  • Lactose
  • Maltose

4. What is the main function of monosaccharides?

  • To provide a store of energy (i.e. starch)
  • To provide energy (i.e. glucose)
  • To provide cell structure (i.e. cellulose)

5. What is the product of alpha glucose + alpha glucose?

  • Sucrase
  • Maltose
  • Sucrose


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