immobilised enzymes

• What are immobilised enzymes?

  Enzymes that are fixed ,trapped or bound on an inert matrix
• what are the advantages of immobilised enzymes

  reusable , doesnt contaminate the substance, works at a wider range of phs and temperatures
• list example of where enzymes could be immobilised

  on a inert matrix , covalently bonded to a solid , trapped within a cell or within selectively permeable membrane
• explain why enzymes immobilised in beads have a lower rate of reaction then those immobilises on a membrane

  some active sites are inside the beads and the substance will take time to diffuse into them
• What does lactose break down into?

  glucose and galactose
• list examples of uses of immobilised enzymes

  lactose free milk and bio sensors
• what enzyme is used to produce lactose free milk

  lactase
• what is a biosensor

  A device that uses a biological molecule, such as an enzyme to detect a chemical
• what would a biosensor detect

  concentrations within a matrix and the measure ment of glucose in the blood
• what is meant by hfcs

  high fructose corn syrup
• name a medical condition that could be detected using a glucose biosensor

  diabetes