Amino Acid Absorption

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Questions and Answers

What facilitates the transport of amino acids into the portal vein?

  • Na+ independent transporters (correct)
  • K+ dependent cotransporters
  • Na+ dependent symporters
  • H+ dependent antiporters

What is the dependence of one of the symporters involved in the absorption of amino acids?

  • Ca2+ dependent
  • K+ dependent
  • Mg2+ dependent
  • H+ dependent (correct)

What type of transport systems are used for the absorption of free amino acids and di- and tripeptides?

  • Osmosis systems
  • Passive transport systems
  • Active transport systems (correct)
  • Facilitated diffusion systems

What is the location of the active transport systems involved in the absorption of amino acids?

<p>Enterocyte membrane (D)</p> Signup and view all the answers

What is similar between the absorption of glucose and amino acids?

<p>Active transport systems (D)</p> Signup and view all the answers

What is the role of Na+ in the absorption of free amino acids and di- and tripeptides?

<p>Na+ is involved in the symport mechanism of amino acid transport (D)</p> Signup and view all the answers

What is the primary function of the enterocyte membrane in amino acid absorption?

<p>To facilitate the transport of amino acids into the portal vein (B)</p> Signup and view all the answers

What is the difference between Na+ dependent and H+ dependent symporters?

<p>Na+ dependent symporters use a different ion to facilitate transport (B)</p> Signup and view all the answers

What is the significance of di- and tripeptides in amino acid absorption?

<p>They are absorbed along with free amino acids using specific transport systems (B)</p> Signup and view all the answers

What is the fate of the absorbed amino acids?

<p>They are transported into the portal vein (D)</p> Signup and view all the answers

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