Eukaryotic Cell Structure and Characteristics
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Questions and Answers

What is the primary function of the intracytoplasmic membrane complex in eukaryotic cells?

  • To provide structural support
  • To perform photosynthetic reactions
  • To serve as a transport system (correct)
  • To generate ATP through fermentation

    • What is a characteristic that distinguishes eukaryotic cells from bacterial and archaeal cells?

  • Absence of mitochondria
  • More structurally complex and generally larger size (correct)
  • Presence of a large nucleus
  • Lack of a cell wall

    • What is the primary component of the cell walls of photosynthetic algae?

  • Cellulose, pectin, and silica (correct)
  • Chitin and glucans
  • Starch and glycogen
  • Proteins and lipids

    • What is the site of tricarboxylic acid cycle activity in eukaryotic cells?

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

    What is the function of hydrogenosomes in some anaerobic protists?

    <p>To generate ATP through fermentation</p> Signup and view all the answers

    What is the origin of mitochondria and chloroplasts?

    <p>They were formed through symbiotic relationships with bacteria</p> Signup and view all the answers

    What is unique about the ribosomes found in mitochondria and chloroplasts?

    <p>They are similar to prokaryotic 70s ribosomes</p> Signup and view all the answers

    What is the primary function of chloroplasts?

    <p>To perform photosynthetic reactions</p> Signup and view all the answers

    What is a characteristic of the DNA found in mitochondria?

    <p>It is circular and replicates autonomously</p> Signup and view all the answers

    What is the purpose of the double membrane surrounding chloroplasts?

    <p>To regulate the flow of materials into and out of the chloroplast</p> Signup and view all the answers

    What is the primary function of the mitochondria in eukaryotic cells?

    <p>To generate ATP through electron transport and oxidative phosphorylation</p> Signup and view all the answers

    What is the main difference between mitochondria and hydrogenosomes?

    <p>Mitochondria generate ATP through electron transport while hydrogenosomes generate ATP through fermentation</p> Signup and view all the answers

    What is the composition of the cell walls of fungi?

    <p>Chitin and glucans</p> Signup and view all the answers

    What is the evolutionary origin of mitochondria and chloroplasts?

    <p>They evolved from bacterial cells that were ingested by early eukaryotes</p> Signup and view all the answers

    What is the characteristic of ribosomes found in mitochondria and chloroplasts?

    <p>They are similar to prokaryotic 70s ribosomes</p> Signup and view all the answers

    What is the function of the double membrane surrounding chloroplasts?

    <p>To separate the inner and outer compartments of the chloroplast</p> Signup and view all the answers

    What is the characteristic of the DNA found in mitochondria?

    <p>It is circular and replicates autonomously</p> Signup and view all the answers

    What is the function of the intracytoplasmic membrane complex in eukaryotic cells?

    <p>To serve as a transport system</p> Signup and view all the answers

    What is the characteristic of eukaryotic cells that distinguishes them from bacterial and archaeal cells?

    <p>The presence of membrane-bound organelles</p> Signup and view all the answers

    What is the primary component of the cell walls of photosynthetic algae?

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

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