Biology: Surface Area and Gas Exchange in the Body
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Questions and Answers

What is the function of Villi and Microvilli in the small intestine?

  • To store excess nutrients
  • To decrease surface area for efficient absorption of nutrients
  • To transport nutrients to other organs
  • To increase surface area for better absorption of nutrients (correct)

    • What is the shape of Red Blood Cells, and what is its purpose?

  • Irregular to prevent oxygen transport
  • Spherical to decrease oxygen transport efficiency
  • Cuboidal to store excess oxygen
  • Biconcave to increase surface area for maximizing oxygen transport (correct)

    • What is the function of Alveoli in the respiratory system?

  • Provide enormous surface area for gas exchange (correct)
  • Limit the surface area for gas exchange
  • Store excess carbon dioxide
  • Produce oxygen for the body

    • What surrounds each alveolus and facilitates gas exchange?

    <p>Network of capillaries</p> Signup and view all the answers

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