Enzymes and Catalysts Quiz
15 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What are enzymes?

  • Substances that provide heat and vigorous stirring to speed up chemical reactions
  • Small reactants that bind to large proteins
  • Catalysts that are permanently affected in the reaction
  • Proteins that speed up the rate of a chemical reaction without being consumed (correct)
  • Where do substrates bind to enzymes?

  • On the surface of the enzyme
  • At the active site (correct)
  • Within the enzyme-substrate complex
  • Outside the enzyme molecule
  • What is the resulting structure when the enzyme and substrate are bound?

  • Catalytic structure
  • Catalyzed complex
  • Enzyme-substrate complex (correct)
  • Protein complex
  • What happens to the original enzyme molecules after all the reactants have been converted to products?

    <p>Remain unchanged</p> Signup and view all the answers

    Why are enzymes very specific to which substrates they will bind to?

    <p>They have high specificity and only specific reactants will fit on their surfaces at the active site</p> Signup and view all the answers

    Enzymes are not changed by the reaction they catalyze

    <p>True</p> Signup and view all the answers

    Enzymes are the only type of catalysts in living cells

    <p>False</p> Signup and view all the answers

    Enzymes bind to substrates at their inactive site

    <p>False</p> Signup and view all the answers

    The resulting structure when the enzyme and substrate are bound is called a substrate-enzyme complex

    <p>False</p> Signup and view all the answers

    Enzymes can bind to any type of substrate due to their low specificity

    <p>False</p> Signup and view all the answers

    Match the following terms with their descriptions:

    <p>Enzymes = Protein catalysts that speed up chemical reactions Substrates = Small reactants that bind to enzymes at their active site Catalysts = Substances that speed up the rate of a chemical reaction without being consumed Enzyme-substrate complex = Resulting structure when the enzyme and substrate are bound</p> Signup and view all the answers

    Match the following statements with their correct descriptions:

    <p>Enzymes are very specific to which substrates they will bind to = High specificity- only specific reactants will fit on their surfaces at the active site Enzymes are not changed by the reaction they catalyze = When all the reactants have been converted to products, the original enzyme molecules remain Enzymes are proteins and they are the most common types of catalysts in living cells = Enzymes are large proteins that bind to small reactants Reactions catalyzed with enzymes are millions of times faster than non-catalyzed reactions = Enzymes are catalysts that speed up the rate of a chemical reaction</p> Signup and view all the answers

    Match the following stages of enzyme-catalyzed reactions with their descriptions:

    <p>Binding of substrates to an enzyme = Occurs at the active site of the enzyme Formation of an enzyme-substrate complex = Resulting structure when the enzyme and substrate are bound Formation of products = Results in a free enzyme and products Binding of substrates to an enzyme and so on = Part of the continuous cycle of enzyme-catalyzed reactions</p> Signup and view all the answers

    Match the following characteristics with their correct terms:

    <p>Heat and vigorous stirring = Options not available to cells for speeding up chemical reactions Specificity = Characteristic of enzymes where only specific reactants will fit on their surfaces at the active site Active site = Location in the enzymes where the chemical reaction will occur Catalysts = Substances that speed up the rate of a chemical reaction without being consumed or permanently affected</p> Signup and view all the answers

    Match the following features with their correct components:

    <p>Enzymes = Large proteins that bind to small reactants Substrates = Particular set of reactants for an enzyme Catalysts = Class of substances that speed up the rate of a chemical reaction without being consumed or permanently affected Enzyme-substrate complex = Resulting structure when the enzyme and substrate are bound</p> Signup and view all the answers

    More Like This

    Biology Chapter 3: Enzymes Flashcards
    21 questions
    Biology Chapter: ATP and Enzymes
    21 questions

    Biology Chapter: ATP and Enzymes

    UnlimitedDerivative5397 avatar
    UnlimitedDerivative5397
    Use Quizgecko on...
    Browser
    Browser