Biology Tenth Edition: Biological Molecules Introduction
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Questions and Answers

What distinguishes living matter from non-living matter?

  • Presence of hydrogen-based compounds
  • Presence of nitrogen-based compounds
  • Presence of carbon-based compounds (correct)
  • Presence of oxygen-based compounds
  • What is the study of compounds that contain carbon known as?

  • Organic chemistry (correct)
  • Physical chemistry
  • Analytical chemistry
  • Inorganic chemistry
  • Which chemical groups are the components of organic molecules most involved in chemical reactions?

  • Functional groups (correct)
  • Inert gases
  • Electrolytes
  • Alkali metals
  • What feature makes estradiol and testosterone different while sharing a common carbon skeleton?

    <p>Different functional groups attached to carbon rings</p> Signup and view all the answers

    What gives each organic molecule its unique properties?

    <p>Number and arrangement of functional groups</p> Signup and view all the answers

    Which term refers to compounds that have the same molecular formula but different structural arrangements?

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

    Which functional group is found in amino acids like glycine?

    <p>Carboxyl group</p> Signup and view all the answers

    What compound contains a phosphate group that participates in important cellular reactions?

    <p>Organic phosphate</p> Signup and view all the answers

    Which compound has a sulfhydryl group that can form 'cross-links' stabilizing protein structure?

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

    What type of bond forms when a hydrogen atom is attracted to an electronegative atom?

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

    In which compound does a methyl group affect gene expression and sex hormone function?

    <p>Methylated compound</p> Signup and view all the answers

    Which compound's ionized form is found in cells and contributes a negative charge?

    <p>Organic phosphate</p> Signup and view all the answers

    Which functional group is found in glucose?

    <p>Hydroxyl group</p> Signup and view all the answers

    Which functional group is characteristic of a ketose sugar?

    <p>Carbonyl group</p> Signup and view all the answers

    What type of bond can the hydroxyl group form with water?

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

    Which functional group contributes to the sour taste of acetic acid?

    <p>Carboxyl group</p> Signup and view all the answers

    Which functional group consists of a nitrogen bonded to two hydrogen atoms?

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

    Which functional group is composed of a carbon linked by a double bond to an oxygen atom?

    <p>Carbonyl group</p> Signup and view all the answers

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