Biochemistry and Scientific Method Quiz
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Questions and Answers

What is the main focus of biochemistry?

  • The chemical basis of life and the molecules in living cells (correct)
  • The experimental identification and description of enzymes as catalysts
  • The study of atomic and molecular systems in living organisms
  • The investigation of natural phenomena in the context of living organisms

    • Which best describes a scientific law?

  • An explanation of the general principles of certain phenomena with experimental evidence
  • A statement of natural phenomena to which no exceptions are known under given conditions (correct)
  • A trial explanation of certain facts that provides a basis for further experimentation
  • A well-established hypothesis with considerable evidence to support it

    • What distinguishes a theory from a hypothesis?

  • The specificity of the explanation it provides
  • The level of detail in the description it offers
  • The number of trials conducted to test it
  • The amount of experimental evidence supporting it (correct)

    • What is the role of enzymes in living organisms?

    <p>Acting as catalysts in biochemical reactions</p> Signup and view all the answers

    Which field does biochemistry contribute to?

    <p>Genetics, cell biology, and molecular biology</p> Signup and view all the answers

    Which type of macromolecule is assembled from nucleotides?

    <p>Nucleic acids</p> Signup and view all the answers

    What type of reaction removes a molecule of water from two monomers as they are connected together to form polymers?

    <p>Dehydration synthesis</p> Signup and view all the answers

    What is the chemical composition of protein in a normal man weighing 65 kg?

    <p>11%</p> Signup and view all the answers

    Which type of molecule do all cells use for cell walls (if present) and energy generation?

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

    What creates a permanent dipole in a molecule, which can determine the relative solubility of molecules?

    <p>Hydrogen bond</p> Signup and view all the answers

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