Biological Macromolecules Quiz
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Questions and Answers

What is the primary function of lipids in biological systems?

  • Store genetic information
  • Catalyze biochemical reactions
  • Cell membranes and energy storage (correct)
  • Transport oxygen in the bloodstream

    • Which of the following macromolecules is responsible for storing genetic material?

  • Lipids
  • Carbohydrates
  • Nucleic acids (correct)
  • Proteins

    • Which macromolecule is considered a polymer and consists of long chains made from repeating units?

  • Lipids
  • Monosaccharides
  • Nucleic acids
  • Proteins (correct)

    • What term describes the building block of a polymer?

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

    Which of the following is NOT classified as a polymer?

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

    Among the following, which macromolecule provides structural support as well as energy storage?

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

    What is the function of proteins in biological systems?

    <p>Facilitate chemical reactions</p> Signup and view all the answers

    Which example correctly pairs a macromolecule with its primary function?

    <p>Nucleic acids - Store genetic material</p> Signup and view all the answers

    Which class of biological molecules includes saturated, unsaturated, and trans fats?

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

    What are the basic building blocks of proteins?

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

    Which type of macromolecule is primarily responsible for genetic information?

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

    Among the four classes of biological molecules, which one includes sugars and starches?

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

    Which level of protein structure is characterized by the specific sequence of amino acids?

    <p>Primary structure</p> Signup and view all the answers

    What distinguishes a monosaccharide from a polysaccharide?

    <p>Monosaccharides are single sugar units.</p> Signup and view all the answers

    Which of the following molecules is NOT classified as a macromolecule?

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

    Which class of biological molecules is NOT responsible for energy storage?

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

    Which of the following is the simplest carbohydrate monomer?

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

    What is the purpose of carbohydrates in biological systems?

    <p>Fuel and fuel storage</p> Signup and view all the answers

    Which of the following is a common monosaccharide?

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

    What is the molecular formula example of monosaccharides?

    <p>C6H12O6</p> Signup and view all the answers

    How are monosaccharides commonly named?

    <p>By the number of carbons and position of OH groups</p> Signup and view all the answers

    Which carbohydrate is primarily used in photosynthesis and energy storage?

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

    What distinguishes polysaccharides from monosaccharides?

    <p>Their size and complexity</p> Signup and view all the answers

    What is a characteristic of the structure of carbohydrates in aqueous solutions?

    <p>They form ring structures</p> Signup and view all the answers

    Which of the following is NOT a carbohydrate?

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

    What is the general chemical formula for many monosaccharides?

    <p>Multiples of CH2O</p> Signup and view all the answers

    What is the main difference between regular corn syrup and high fructose corn syrup (HFCS)?

    <p>HFCS is sweeter due to a higher fructose content.</p> Signup and view all the answers

    Which enzyme is responsible for the digestion of lactose?

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

    What primarily defines the structure and function of a polysaccharide?

    <p>The sugar monomers and their connections</p> Signup and view all the answers

    Which of the following is an example of a disaccharide?

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

    What type of polysaccharides are starch and glycogen classified as?

    <p>Storage polysaccharides</p> Signup and view all the answers

    What is a key characteristic of structural polysaccharides?

    <p>They are typically unbranched.</p> Signup and view all the answers

    What health issue is caused by the lack of the enzyme lactase?

    <p>Lactose intolerance</p> Signup and view all the answers

    Which type of bond links monosaccharides to form disaccharides and polysaccharides?

    <p>Covalent bonds</p> Signup and view all the answers

    What is the primary component of plant cell walls?

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

    How do gut bacteria assist individuals who are lactose intolerant?

    <p>They metabolize lactose through fermentation.</p> Signup and view all the answers

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