Biochemistry Basics Quiz
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Questions and Answers

What is the discipline that uses the principles and language of chemistry to explain biology?

  • Bioengineering
  • Biophysics
  • Biological chemistry (correct)
  • Bioinformatics
  • Which of the following is NOT a principal type of biomolecule?

  • Carbohydrates
  • Proteins
  • Nucleic acids
  • Enzymes (correct)
  • What is the function of biological membranes?

  • Energy production
  • Cell division control
  • Regulation of nutrient transport (correct)
  • Hormone secretion
  • Which organelle is responsible for the synthesis of proteins?

    <p>Endoplasmic reticulum</p> Signup and view all the answers

    What is the primary function of amino acids and proteins in living organisms?

    <p>Cell structure building</p> Signup and view all the answers

    How are amino acids commonly classified based on the relative polarities of the R-groups?

    <p>Hydrophobic and hydrophilic</p> Signup and view all the answers

    What is the primary role of proteins in living systems?

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

    How are amino acids joined together in proteins?

    <p>Via peptide bonds</p> Signup and view all the answers

    What percentage of the dry weight of an organism is typically composed of proteins?

    <p>50%</p> Signup and view all the answers

    Which of the following is NOT a function of proteins?

    <p>Energy storage</p> Signup and view all the answers

    What are the monomer units that constitute proteins?

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

    What distinguishes one amino acid from another?

    <p>The structure of its side chain (R group)</p> Signup and view all the answers

    Which type of amino acid can be synthesized in the body?

    <p>Essential amino acids</p> Signup and view all the answers

    Based on their interaction with water, how are amino acids classified?

    <p>Based on their polarity</p> Signup and view all the answers

    What is the primary role of L-α-amino acids in living systems?

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

    What is the distinctive feature of an α-carbon in an amino acid?

    <p>It is attached to four different groups or atoms</p> Signup and view all the answers

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