Cell Cycle - Interphase
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Questions and Answers

During which phase of the cell cycle does DNA replication occur?

  • Prophase
  • S (correct)
  • G1
  • G2
  • What is the primary function of skeletal muscle tissue?

  • Regeneration
  • Protection against microorganisms
  • Voluntary movement (correct)
  • Internal communication
  • Which type of epithelial tissue is found in the alveoli of the lungs?

  • Simple Columnar
  • Simple Squamous (correct)
  • Stratified Squamous
  • Cuboidal
  • What is the term for cells that permanently cease dividing?

    <p>G0</p> Signup and view all the answers

    What is the primary function of cardiac muscle tissue?

    <p>Propelling blood into circulation</p> Signup and view all the answers

    Which type of tissue forms boundaries between different environments?

    <p>Epithelial tissue</p> Signup and view all the answers

    What is the characteristic of epithelial tissue that allows it to heal quickly?

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

    What is the term for the process of cell division?

    <p>Mitotic phase</p> Signup and view all the answers

    Which type of epithelium is found in the trachea?

    <p>Pseudo-stratified columnar epithelium</p> Signup and view all the answers

    What is the characteristic of stratified epithelium?

    <p>It has multiple layers of cells</p> Signup and view all the answers

    What is the function of the cilia in the pseudo-stratified columnar epithelium?

    <p>To move substances through ciliary action</p> Signup and view all the answers

    What is the main characteristic of loose connective tissue?

    <p>It has a loose network of fibers</p> Signup and view all the answers

    Which type of connective tissue is found in the walls of many large arteries?

    <p>Elastic connective tissue</p> Signup and view all the answers

    What is the main difference between thick and thin skin?

    <p>Number of layers of epithelial cells</p> Signup and view all the answers

    What is the function of connective tissue?

    <p>To support and protect other tissues</p> Signup and view all the answers

    What type of epithelium is found on the skin?

    <p>Stratified squamous keratinized epithelium</p> Signup and view all the answers

    Study Notes

    Cell Cycle

    • The cell cycle has two major periods: Interphase and Cell Division
    • Interphase: cell grows, carries out usual activities, and prepares for cell division
    • Interphase consists of three subphases: G1 (vigorous growth and metabolism), S (DNA replication), and G2 (preparation for division)
    • Cell division (mitotic phase): cell divides into two, consisting of Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis

    Tissues

    Nervous Tissue

    • Internal communication
    • Found in brain, spinal cord, and nerves
    • Doesn't regenerate

    Muscle Tissue

    • Contracts for movement
    • Types: Skeletal (voluntary movement, locomotion, facial expression), Cardiac (involuntary control, propels blood into circulation)

    Epithelial Tissue

    • Forms boundaries between different environments
    • Found on skin surface, lining of digestive tract, sensory organs, and glands
    • Has polarity, regenerates quickly
    • Shapes: Squamous, Cuboidal, Columnar
    • Types:
      • Simple Columnar (e.g., small intestine)
      • Simple Squamous (e.g., alveoli in lungs)
      • Stratified Squamous (e.g., skin, trachea)
      • Pseudo-Stratified Columnar (e.g., trachea)
      • Stratified Squamous Keratinized (e.g., skin with keratin)

    Connective Tissue

    • Supports and protects other tissues
    • Types:
      • Connective tissue proper:
        • Loose connective tissue (e.g., Aerolar, Adipose, Reticular)
        • Dense connective tissue (e.g., Dense Regular, Dense Irregular, Elastic)
      • Supporting connective tissue:
        • Cartilage (e.g., Hyaline cartilage)

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    Description

    Understand the two major periods of the cell cycle, including interphase, where cell growth and preparation for cell division occur. Learn about the subphases of interphase, including G1 and S phases.

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