Nutrients (Biological Molecules)

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  1. 2. The combination of 2 glucose molecules gives ____________.
  2. 4. Water is an important _____________ for chemical reactions.
  3. 5. A carbohydrate present in cell walls.
  4. 6. A polysaccharide found in storage organs of plants.
  5. 8. Organic molecules that are made up of carbon, hydrogen and oxygen; the ratio of hydrogen to oxygen is 2:1.
  6. 11. Simple sugar is also called _________________.
  7. 12. To test for starch, __________ solution is used.
  8. 13. A polysaccharide stored in liver and muscles of mammals.
  9. 14. To test for reducing sugar, ____________ solution is used.
Down
  1. 1. An example of a simple sugar.
  2. 2. The enzyme that breaks down maltose into its glucose units.
  3. 3. Many simple sugar molecules are joined together to form a ________________.
  4. 7. A chemical reaction whereby two simple molecules are joined together to form a larger molecule with the removal of one molecule of water.
  5. 9. A positive test for reducing sugar will give a ______-____ precipitate.
  6. 10. Water is a ___________ medium for dissolved substances e.g. digested products & waste products.