Paper 1

• What is the test for Sugar?

  Benedict's reagent: Once heated the solution will change from blue-green to yellow-red
• What is the test for starch?


  Iodine: orange to blue/black
• What is the test for protein?


  Biuret: solution will change from blue to pink/purple
• What is the test for lipids?


  Sudan 3: the lipids will separate and the top layer will turn red
• What does amylase break down?


  Starch into sugars
• What does protease break down?


  proteins into amino acids
• what does lipase break down?


  lipids into glycerol and fatty acids
• Where is amylase produced?


  small intestine, pancreas and salivary glands
• Where is protease produced?


  small intestine, pancreas and stomach
• Where is lipase produced?


  small intestine, pancreas
• What does the cell membrane do?


  controls what moves in and out of the cell
• What does the mitochondria do?

  Where respiration takes place.
• What does the nucleus do?


  The nucleus contains the cell's genetic material and controls the cell's activities.
• What do ribosomes do?

  Where protein synthesis occurs
• What does the cytoplasm do?

  Where the majority of activities take place
• What does the cell wall do?

  made of cellulose and strengthens the cell
• What does the vacuole do?

  space filled with sap that keeps the cell turgid
• What do chloroplasts do?

  Contains chlorophyll and is the location of photosynthesis.