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Enzymes

  • Game Code: 1151598
  •  English    21     Public
    grade 11 A level Unit 3 enzymes
  •   Study   Slideshow
  • The graph shows energy changes in a chemical reaction. What is the activation energy when an enzyme is NOT added?
    1+2
  •  20
  • What do enzymes lower to make rections go faster?
    Activation energy
  •  10
  • Which variable is on the X axis?
    Temperature
  •  10
  • Which represents the enzyme, lock or key?
    Lock
  •  10
  • Which hypothesis suggests that the shape of the enzyme changes slightly upon binding the substrate for better fit?
    Induced fit
  •  15
  • The graph shows how the concentration of components of an enzyme catalysed reaction changes with time. Which line represents the enzyme-substrate complexes?
    D
  •  20
  • The activity of human enzymes stosp at very low temperatures. What is this called?
    inactivation.
  •  10
  • What are the products in the reaction catalysed by catalase enzyme?
    Water and oxygen
  •  20
  • Where is the enzyme in this experiment?
    Inside the potato (cubes)
  •  10
  • Diagram shows an ezperimental set up to investigate the effect of enzyme concentration on the rate of reaction.What is the dependent factor in this experiment?
    Rate of reaction/ volume of oxygen(gas) collected
  •  15
  • You are asked to plot time vs volume of oxygen collected graph. Which variable goes to X axis?
    time
  •  10
  • You are asked to temperature vs volume of oxygen collected graph. Which variable goes to X axis?
    Temperature
  •  10
  • This following graph will be used to calculate Km. Which variabl should be on the X axis?
    Substrate concentration
  •  20
  • Which of the enzymes in the table has the highest affinity for its substrate?
    Lysosyme
  •  15
  • Which enzyme has lower affinity for its substrate?
    B
  •  15
  • What do competitive inhibitors decrease; Vmax only, Km only or both?
    V max only
  •  15
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