Bread-Making and Yeast Fermentation Quiz
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Questions and Answers

What are the three main products produced by yeast during fermentation?

  • Carbon dioxide, ethanol, and energy (ATP) (correct)
  • Water, ethanol, and carbon dioxide
  • Carbon dioxide, oxygen, and energy (ATP)
  • Glucose, ethanol, and energy (ATP)
  • Amylase is an enzyme produced by yeast that breaks down starch.

    False (B)

    What is the primary role of carbon dioxide in the bread-making process?

    Carbon dioxide bubbles cause the dough to rise, increasing its volume and making it lighter in texture.

    The enzyme that breaks down maltose into glucose is called ______.

    <p>maltose enzyme</p> Signup and view all the answers

    Match the following components with their corresponding role in the bread-making process:

    <p>Flour = Provides starch for yeast to ferment Yeast = Produces carbon dioxide and ethanol Water = Activates enzymes in the flour, allowing starch breakdown Oven heat = Expands bubbles and evaporates ethanol, killing yeast</p> Signup and view all the answers

    How many ATP molecules are produced by anaerobic respiration from 1 glucose?

    <p>2 (B)</p> Signup and view all the answers

    Aerobic respiration occurs in the cytoplasm of eukaryotic cells.

    <p>False (B)</p> Signup and view all the answers

    What is the main advantage of using ATP over glucose for energy release?

    <p>Releasing energy from ATP is quicker.</p> Signup and view all the answers

    In bread making, yeast is activated by mixing with warm water at approximately ______ °C.

    <p>30</p> Signup and view all the answers

    Match the following types of respiration with their characteristics:

    <p>Aerobic respiration = Produces 36 ATP per glucose Anaerobic respiration = Produces 2 ATP per glucose Eukaryotic cells = Respiration occurs in mitochondria Prokaryotic cells = Respiration occurs in cytoplasm</p> Signup and view all the answers

    Flashcards

    Aerobic Respiration

    A process producing 36 ATP from one glucose molecule, occurring in mitochondria.

    Anaerobic Respiration

    A process producing only 2 ATP from one glucose molecule, occurring in the cytoplasm.

    ATP Release

    ATP releases energy when broken down, facilitating processes like active transport.

    Yeast in Bread Making

    Yeast ferments dough, producing carbon dioxide that helps dough rise.

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    Energy Storage Preference

    Cells prefer ATP storage over glucose due to faster energy release and easier storage.

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    Amylase Enzyme

    An enzyme that breaks down starch into maltose.

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    Maltose

    A sugar produced from the breakdown of starch by amylase.

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    Yeast Fermentation

    The process where yeast converts glucose into carbon dioxide, ethanol, and energy.

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    Carbon Dioxide Bubbles

    Gas produced during fermentation that causes bread to rise.

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    Zymase

    The mixture of enzymes produced by yeast, including amylase.

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