Prokaryotic Cell Structure and Function
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Questions and Answers

Which type of animal tissue is characterized by closely-joined cells and serves as a barrier for pathogens and mechanical injuries?

  • Epithelial tissue (correct)
  • Muscle tissue
  • Connective tissue
  • Nerve tissue

    • What is the function of pseudo-stratified columnar epithelial tissue in the body?

  • Exchanging materials through diffusion
  • Active absorption of nutrients (correct)
  • Protection
  • Voluntary movements

    • Which statement best describes muscle tissue?

  • Muscle tissue is made up of plasma and contains erythrocytes and leukocytes.
  • Muscle tissue is responsible for producing new tissue cells to replace old and damaged ones.
  • Muscle tissue consists of long cells called muscle fibers that allow voluntary or involuntary movement. (correct)
  • Muscle tissue is characterized by closely-joined cells serving as barriers for pathogens.

    • What distinguishes skeletal muscle from cardiac muscle in vertebrates?

    <p>Presence of intercalated disks for synchronized contraction</p> Signup and view all the answers

    Which type of animal tissue consists of plasma containing erythrocytes, leukocytes, and platelets?

    <p>Blood (connective tissue)</p> Signup and view all the answers

    What is the main function of stratified squamous epithelial tissue?

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

    What is a characteristic feature of prokaryotic cells?

    <p>DNA found in nucleoid region</p> Signup and view all the answers

    Which structure in prokaryotic cells acts as an extra layer of protection and helps in maintaining shape?

    <p>Polysaccharide capsule</p> Signup and view all the answers

    What is the function of Pili in prokaryotic cells?

    <p>Genetic material exchange during conjugation</p> Signup and view all the answers

    Which characteristic is unique to eukaryotic cells compared to prokaryotic cells?

    <p>Membrane-bound nucleus</p> Signup and view all the answers

    What distinguishes eukaryotic cells from prokaryotic cells in terms of DNA organization?

    <p>Prokaryotic cells have several rod-shaped chromosomes</p> Signup and view all the answers

    What is a common feature between prokaryotic and eukaryotic cells in terms of cell size?

    <p>Both types of cells have similar diameters</p> Signup and view all the answers

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