Absorption in the Intestinal Mucosa
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Questions and Answers

What is the primary role of villi in the absorption process?

  • Breaking down nutrients into simpler forms
  • Transporting absorbed substances to the blood (correct)
  • Secreting digestive enzymes
  • Enhancing gastrointestinal motility
  • How do glucose, amino acids, and chloride ions generally get absorbed during absorption?

  • By passive diffusion
  • Via simple diffusion (correct)
  • Through active transport
  • By facilitated transport with carrier ions
  • Which mechanism is utilized for the absorption of substances like fructose?

  • Active transport
  • Facilitated transport (correct)
  • Passive diffusion
  • Endocytosis
  • What happens to faty acids, glycerol, and fat-soluble vitamins during absorption?

    <p>Synthesized into protein-coated fat globules</p> Signup and view all the answers

    Which type of transport is responsible for the absorption of amino acids, glucose, and Na+ against concentration gradients?

    <p>Active transport</p> Signup and view all the answers

    Where do chylomicrons go after being synthesized in the intestinal mucosa?

    <p>Empty into the lymphatic duct</p> Signup and view all the answers

    Where does the maximum absorption of substances take place in the alimentary canal?

    <p>Small intestine</p> Signup and view all the answers

    How are water-soluble vitamins primarily absorbed in the body?

    <p>Simple diffusion</p> Signup and view all the answers

    Where does the absorption of simple sugars, alcohol, and medicines mainly take place?

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

    Which part of the body is also involved in absorbing larger amounts of water, vitamins, some minerals, and certain drugs?

    <p>Large intestine</p> Signup and view all the answers

    What is the process called when absorbed substances are utilized by all body tissues and incorporated into their protoplasm?

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

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