Biology Chapter 4: Carbon Skeleton and Functional Groups
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Questions and Answers

Which monosaccharide is found in the disaccharide sucrose?

  • Glucose
  • Maltose
  • Galactose
  • Fructose (correct)
  • In which type of chain is cellulose composed?

  • Maltose chain
  • a-glucose chain
  • b-glucose chain (correct)
  • Galactose chain
  • What is the primary function of chitin in animals and fungi?

  • Carbon source
  • Building material for plant cell walls
  • Structural support (correct)
  • Energy resource
  • What gives a protein its 3-D shape, including folds and coils?

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

    Which nucleic acid carries information from DNA to ribosomes?

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

    What is the primary function of a metabolic intermediate?

    <p>Participating in enzymatic reactions</p> Signup and view all the answers

    How do functional groups contribute to the properties and reactions of organic compounds?

    <p>By influencing the chemical reactivity and polarity of the compound</p> Signup and view all the answers

    What is the significance of carbon chains varying in length and shape in organic molecules?

    <p>It influences the molecular weight and structural diversity of the molecules</p> Signup and view all the answers

    What is the primary role of lipids in living organisms?

    <p>Serving as a structural component in cell membranes</p> Signup and view all the answers

    What is a characteristic feature of nucleic acids that distinguishes them from other biological molecules?

    <p>Their ability to store and transmit genetic information</p> Signup and view all the answers

    What is the main function of a carbohydrate in living organisms?

    <p>Serving as a reserve energy source</p> Signup and view all the answers

    What is the primary function of cellulose in plant cell walls?

    <p>To provide structural support and strength</p> Signup and view all the answers

    Which polysaccharide is primarily responsible for storing glucose in liver and muscle cells?

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

    What is the main function of chitin in arthropods?

    <p>Structural support in cell walls</p> Signup and view all the answers

    Which type of protein structure is characterized by a 3-D shape with folds and coils?

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

    Which nucleic acid stores hereditary information in the form of double-stranded helix with Thymine bases?

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

    What is the primary function of myoglobin protein in cells?

    <p>Oxygen storage and transport</p> Signup and view all the answers

    What is the primary function of nucleotides in DNA and RNA?

    <p>Encoding genetic information</p> Signup and view all the answers

    Which amino acid substitution in a protein causes sickle-cell disease?

    <p>Glutamic acid to valine</p> Signup and view all the answers

    What type of bond forms between amino acids in a protein?

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

    In which organelle is starch, a polysaccharide, primarily synthesized?

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

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