Introduction to Biochemistry for Nurses: Biomolecules Composition
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Questions and Answers

What is the main definition of biochemistry?

  • The study of biological systems
  • The chemistry of living things (correct)
  • The study of lifeless molecules
  • The composition of molecules

    • What is the building block (monomer) of proteins?

  • Amino acids (correct)
  • Sugar residues
  • Nucleic acids
  • Glycerol and fatty acids

    • Which elements are biomolecules mainly composed of?

  • Carbon, oxygen, hydrogen, iron, phosphorous, and sulfur
  • Carbon, oxygen, hydrogen, nitrogen, phosphorous, and selenium
  • Carbon, oxygen, helium, nitrogen, phosphorous, and sulfur
  • Carbon, oxygen, hydrogen, nitrogen, phosphorous, and sulfur (correct)

    • Why is carbon so predominant in living systems?

    <p>Due to its ability to bond with up to four other atoms</p> Signup and view all the answers

    What is a major component of cells?

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

    What is more abundant in living organisms compared to the rest of the universe?

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

    What are the common functional groups present in biomolecules?

    <p>Alcohols, esters, amines</p> Signup and view all the answers

    What forms common linkages present in biomolecules?

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

    Biomolecules are composed mainly of four nonmetallic elements: carbon, oxygen, hydrogen, and nitrogen.

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

    Sulfur makes up less than 97% of the weight of most organisms.

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

    Carbon can only covalently bond with up to three other atoms.

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

    Water is not a major component of cells.

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

    Carbon is less abundant in living organisms than it is in the rest of the universe.

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

    The building block (monomer) of proteins is glycerol and fatty acids.

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

    Common linkages present in biomolecules are sucrose and fructose.

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

    DNA and RNA are examples of lipids.

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

    Nucleic acids are composed mainly of five nonmetallic elements.

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

    The main definition of biochemistry is the chemistry of inorganic systems.

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

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