1. Leaving Certificate Biology Enzymes 1 iQuiz SECOND Press the F5 Key to Begin, Then click on this Blue Box FIRST In PowerPoint 2007 if you see a Security Warning click HERE on Options… and then click on  Enable this content

2. The substance upon which an enzyme acts is called the … Substrate FiltrateSolvent Solute

3. Which of the following is an enzyme, found in saliva, whose product is maltose? Catalase LipaseAmylase Maltase

4. Amylase works on which substrate to produce maltose? LipidsStarch ProteinGlucose

5. Name an enzyme that breaks down hydrogen peroxide to oxygen and water. ErepsinCatalase LipaseAmylase

6. The optimum temperature for human enzyme activity is … 27 °C57 °C 47 °C37 °C

7. Which of the following enzymes does not digest carbohydrates? SucraseLipase LactaseMaltase

8. What type of biological substance are enzymes? FatsFatty acids ProteinsCarbohydrates

9. What name is given to the position on an enzyme where the substrate is attached? Acute siteActive site Enzyme-substrate complex None of these

10. What term describes using living organisms to produce useful products, e.g. yeast to produce bread and alcohol? BioprocessingBiophysics Batch processing Continuous flow processing

11. Which of the following terms is given to a container in which a living thing is used in the production of something useful? BiomeBiotechnology BioreactorNone of these

12. What term is used to describe an enzyme that has been destroyed by excessive heat, pH, etc. and will not 'work' again? DegeneratedDenatured DepletedDehydrated

13. This term describes an enzyme trapped in beads or gel so that it will react with, but not mix with, its substrate. DeactivatedEnergised ActivatedImmobilised

14. A gel commonly used to immobilise enzymes is … Sodium stearateSodium alginate Calcium alginateDax

15. The temperature or pH at which an enzyme works best is called its … FavouriteBest OptimumMaximum

16. The theory of an enzyme slightly changing shape to fit its substrate is called the … Moulding enzyme model Induced fit model Flexible enzyme model Elastic fit model

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