Cell Shape and Size in Biology
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Questions and Answers

What is the primary function of muscle cells?

  • To form the structure of bones
  • To create a pulling force to stabilize or move parts of the body (correct)
  • To produce reproductive cells
  • To transmit messages from the body to the brain
  • What is the term for the cells that make up bone tissue?

  • Neurons
  • Osteoblasts (correct)
  • Myocytes
  • Osteocytes
  • Which of the following is an example of a small-sized cell?

  • Human ova
  • Chondrocytes
  • Ostrich egg
  • Erythrocytes (correct)
  • What is the term for reproductive cells?

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

    What is the function of nerve cells?

    <p>To receive and send messages from the body to the brain</p> Signup and view all the answers

    Which type of muscle cell is found in the heart?

    <p>Cardiac muscle</p> Signup and view all the answers

    What is the shape of endothelial cells?

    <p>Spindle shape long and pointed on both ends</p> Signup and view all the answers

    What is the function of fat cells?

    <p>To store lipids for energy and produce hormones</p> Signup and view all the answers

    What is the main function of endothelial cells?

    <p>In the regulation of immunology</p> Signup and view all the answers

    What type of cells can develop into many different types of cells?

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

    What is the function of pancreatic cells?

    <p>To synthesize, store, and release insulin</p> Signup and view all the answers

    What is the shape of red blood cells?

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

    What is the primary function of fat cells?

    <p>To store lipids for energy</p> Signup and view all the answers

    What type of cells make up bone tissue?

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

    Study Notes

    Cell Shape

    • Cell shape is genetically related to its location and function in the body
    • Examples of cell shapes:
      • Round: white blood cells
      • Elongated: muscle cells
      • Spherical: red blood cells
      • Spindle shape: endothelial cells
      • Branched: nerve cells

    Types of Cells

    • Stem cells: can develop into many different types of cells
    • Blood cells: produced through hematopoiesis, include red blood cells, white blood cells, and platelets
    • Fat cells: store lipids for energy, produce and secrete hormones, and release heat energy
    • Endothelial cells: found in the lining of blood vessels, lymph vessels, and the heart, control blood fluidity, platelet aggregation, and vascular tone
    • Pancreatic cells: synthesize, store, and release insulin into the bloodstream
    • Bone cells: osteoblasts, osteoclasts, osteocytes, and osteoprogenitor cells, each with a unique function
    • Muscle cells: skeletal, smooth, and cardiac muscle cells, create a pulling force to stabilize or move parts of the body
    • Nerve cells: receive and send messages from the body to the brain and back to the body, consist of cell body, axon, and dendrites
    • Sex cells: reproductive cells, sperm cell in male and ovum in female
    • Cancer cells: differ from normal cells in many ways

    Cell Size

    • Cell size is variable in living organisms, ranging from 1 micrometer to a few centimeters
    • Examples of cell sizes:
      • Small size: less than 10 μm, e.g. erythrocytes, lymphocytes
      • Middle size: 10 to 30 μm, e.g. chondrocytes, osteoblasts
      • Big size: cells over 30 μm, e.g. human ova, ostrich egg

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    Description

    Explore the genetic relation between cell shape and size with their location and function in the body, including different types of cell shapes.

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