Sodium Metabolism in the Body
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Questions and Answers

What is the sodium content range in processed foods?

  • 5.5–11 mmol/100 g
  • 3.3–5.5 mmol/100 g
  • 11–48 mmol/100 g (correct)
  • 0.1–3.3 mmol/100 g

    • How is sodium absorbed in the proximal intestine?

  • By facilitated diffusion
  • By a solute dependent cotransport system (correct)
  • Through active transport
  • By passive diffusion

    • Where is sodium concentrated in the body?

  • Lymphatic system
  • Intracellular fluid
  • Blood plasma
  • Extracellular fluid (correct)

    • What is the process of sodium absorption in the distal colon coupled to?

    <p>Chloride/bicarbonate exchange</p> Signup and view all the answers

    What is required for passive water absorption in the intestine?

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

    What is the sodium content range in natural foods?

    <p>0.1 - 3.3 mmol/100 g</p> Signup and view all the answers

    Which process is involved in sodium absorption in the proximal intestine?

    <p>Solute dependent cotransport system</p> Signup and view all the answers

    What is the primary function of sodium in the extracellular fluid?

    <p>Contributing to osmolality and charge movement</p> Signup and view all the answers

    What is the main reason for the high sodium content in processed foods?

    <p>Use of sodium nitrate as a preservative</p> Signup and view all the answers

    In which part of the intestine does electroneutral sodium absorption occur?

    <p>Distal colon</p> Signup and view all the answers

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