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Enzyme Quiz Rules

Enzyme Quiz Rules. Keep you eyes on your Scan Tron . No exceptions! If you shout out the answer..You leave the room..and you receive a 0 No comments on the questions Be quiet Raise your hand if there is an issue Be Quiet.

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Enzyme Quiz Rules

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  1. Enzyme Quiz Rules Keep you eyes on your Scan Tron. No exceptions! If you shout out the answer..You leave the room..and you receive a 0 No comments on the questions Be quiet Raise your hand if there is an issue Be Quiet

  2. 1. The above graph shows the reactivity of the enzyme lactase at certain temperatures. What temperature does lactase function most efficiently at? 10 degrees 20 degrees c. 30 degrees d. 40 degrees

  3. A B A 2. Letter A is pointing to the point where an enzyme comes “into contact” with another molecule. What is this point called? Contact point Active site Contact site Active point

  4. 3. When an enzyme and substrate come into contact with one another, the enzyme slightly changes shape to hold the substrate in place. What model correctly identifies this process? Induced fit model Point counter-point model Contact model Active model

  5. 4. This is the minimum amount of energy needed for a chemical reaction to take place: Reaction energy Activation reaction Homeostatic energy Activation energy

  6. 5. What most likely happened to this enzyme at 40 degrees? It became denatured and stopped functioning The rate of the reaction increased at 40 degrees Nothing happened; the enzyme continued to function normally More enzymes were produced by the organism

  7. 6. The above graph shows the reactivity of the enzyme lactase at certain temperatures. At which of the following temperatures does lactase no longer function? 10 degrees 20 degrees c. 30 degrees d. 40 degrees

  8. 7. Which enzyme functions best at a pH of 8? pepsin trypsin

  9. 8. As more enzymes are made by an organism, what happens to the rate of chemical reactions inside the body? Gets faster Gets slower Stays the same

  10. 9. What term describes proteins that have changed shape and no longer function? Destabilized Devalued Denatured None of these

  11. 10. Enzymes ____________ the amount of energy needed for a chemical reaction? reduce increase eliminate

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