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Quiz

Enzymes!

Weapon 8 perguntas Atualizado em 19 fev 2016

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Perguntas do quiz (8)

  1. 1What is an intracellular Enzyme?
    1. AAn enzyme which works outside a cell
    2. BAn Enzyme which works inside a cell
    3. CA Biological Catalyst
  2. 2What are the main Properties Of an Enzyme as protein
    1. AA Globular Protein
    2. BInfluenced by temperature only
    3. CInfluenced by Temperature and pH
    4. DIncreases the rate of a reaction
  3. 3What is the Activation energy?
    1. AEnergy required to Turn Substrate in to product
    2. BEnergy required to Break bonds in a molecule
    3. CEnergy require to denature an enzyme
  4. 4What is the lock and key mechanism?
    1. AWhere peptide bonds are hydrolysed
    2. BWhere a substrate has a shape which is complementary to the active site
    3. CWhere reaction produces an enzyme-substrate complex
  5. 5What is a Cofactor?
    1. AA non protein component of an enzyme required for enzyme to carry out reactions
    2. BA molecule which binds to part of an enzyme that is not the active site changing the shape of an enzymes tertiary structure
    3. CA molecule with a similar shape to to the substrate which fits i to an enzyme slowing the rate of reaction
  6. 6What is a competitive Inhibitor?
    1. AA non protein component of an enzyme required by enzymes to carry out a reaction
    2. BA molecule which has a shape similar to that of a substrate which fits in to the active site of an enzyme slowing the rate of a reaction
    3. CA molecule which binds to part of an enzyme which isn't the active site and changes the tertiary structure of the enzyme
  7. 7What happens when the pH changes from the optimum?
    1. AThe shape of the enzyme changes
    2. BThe affinity of the substrate for the active site decreases
    3. CNothing
    4. DThe rate of the reaction increases
  8. 8What happens when the temperature is at optimum
    1. AThe Rate of reaction is at its slowest
    2. BThe rate of reaction it at its fastest
    3. Csubstrates no longer fit the active site

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Descrição
Quiz sobre Enzymes!, criado por Weapon em 07-05-2013.
Autor
Weapon
Idioma
English
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31
Histórico
Criado em 7 mai 2013 · atualizado em 19 fev 2016
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