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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?

Enterocyte membrane Signup and view all the answers

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

Active transport systems Signup and view all the answers

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

Na+ is involved in the symport mechanism of amino acid transport Signup and view all the answers

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

To facilitate the transport of amino acids into the portal vein Signup and view all the answers

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

Na+ dependent symporters use a different ion to facilitate transport Signup and view all the answers

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

They are absorbed along with free amino acids using specific transport systems Signup and view all the answers

What is the fate of the absorbed amino acids?

They are transported into the portal vein Signup and view all the answers