Properties and Importance of Water in Food
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Questions and Answers

Which property of water allows it to form hydrogen bonds with other molecules?

  • Freezing point
  • Boiling point
  • Non-polarity
  • Polarity (correct)
  • What is the most abundant molecule in food?

  • Water (correct)
  • Protein
  • Glucose
  • Oxygen
  • What percentage of water is typically found in raw ripe tomatoes?

  • 45%
  • 94% (correct)
  • 65%
  • 15%
  • What property of water allows it to dissolve a variety of molecules?

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

    Which type of food generally contains more water - vegetables and fruits or meats and grains?

    <p>Fruits and vegetables</p> Signup and view all the answers

    What phenomenon allows common salt (NaCl) to dissolve in water?

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

    What is the term used for substances that readily dissolve in water?

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

    At what temperature does pure water freeze at sea level?

    <p>0°C</p> Signup and view all the answers

    What happens to the boiling point of water when salt or sugar is added to it?

    <p>It increases</p> Signup and view all the answers

    What is the temperature at which water vapor pressure equals atmospheric pressure?

    <p>116°C</p> Signup and view all the answers

    What property of water makes it less dense in its frozen state compared to its liquid state?

    <p>Unique expansion upon freezing</p> Signup and view all the answers

    What does low water activity around a food system inhibit?

    <p>Microbial growth</p> Signup and view all the answers

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