Introduction to Cytology in Biology
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Questions and Answers

What did Robert Hooke observe when he first observed cells?

  • A network of interconnected tubes and filaments
  • A dense and intricate pattern of interwoven fibers
  • A collection of irregularly shaped structures
  • A network of cell walls and boxlike cavities (correct)

    • Why is the cell called the functional unit of the human body?

  • Because it is responsible for all metabolic functions
  • Because it interacts directly with the external environment
  • Because it provides the structural basis for the human body
  • Because it forms the basis for cellular organization (correct)

    • What is the fundamental unit of the body according to the given text?

  • The system
  • The cell (correct)
  • The tissue
  • The organ

    • What does cellular metabolism refer to?

    <p>The process of extracting energy from food molecules</p> Signup and view all the answers

    Why must cells have access to nutrients and oxygen?

    <p>To ensure proper functioning and survival</p> Signup and view all the answers

    What is the cell theory formulated by Matthias Schleiden and Theodor Schwann in 1838 and 1839?

    <p>Both a and b</p> Signup and view all the answers

    What is the approximate diameter of a red blood cell, measured in micrometers?

    <p>7.5 μm</p> Signup and view all the answers

    Which type of cells may be bound together to form selectively permeable membranes?

    <p>Flat cells</p> Signup and view all the answers

    What is the ideal shape for receiving and transmitting stimuli?

    <p>Irregularly shaped cell</p> Signup and view all the answers

    Which discovery culminated in the formulation of the cell theory?

    <p>Development of better microscopes</p> Signup and view all the answers

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