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Science Notes 10-3rd Grading: Biomolecules and Chemical Reactions
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Science Notes 10-3rd Grading: Biomolecules and Chemical Reactions

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Questions and Answers

What biomolecule is made of amino acids and includes examples like albumin, hemoglobin, and immunoglobulin?

  • Carbohydrates
  • Proteins (correct)
  • Lipids
  • Nucleic Acids
  • Which type of chemical reaction involves two or more reactants combining to form one product?

  • Double Replacement
  • Single Replacement
  • Decomposition
  • Synthesis/Combination (correct)
  • What type of chemical reaction involves a substance reacting with oxygen gas and releasing energy in the form of light and heat?

  • Double Replacement
  • Combustion (correct)
  • Single Replacement
  • Decomposition
  • Which evidence indicates that a chemical reaction took place when a substance reacts with oxygen?

    <p>Emission of light</p> Signup and view all the answers

    What law states that mass is neither created nor destroyed during a chemical reaction?

    <p>Law of Conservation of Mass</p> Signup and view all the answers

    What is the method used for balancing chemical equations that involves counting atoms on each side and adjusting coefficients?

    <p>Inspection Method</p> Signup and view all the answers

    What is the main function of carbohydrates in living organisms?

    <p>Provide glucose for energy</p> Signup and view all the answers

    Which of the following is NOT a class of carbohydrates?

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

    What is the main role of lipids in organisms?

    <p>Source and storage of energy</p> Signup and view all the answers

    Which type of lipids form a protective layer in plants and animals?

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

    What elements are proteins mainly composed of?

    <p>Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur</p> Signup and view all the answers

    Which type of proteins are required for the structure, function, and regulation of the body's tissues and organs?

    <p>Fibrous proteins</p> Signup and view all the answers

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