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Carbohydrate Digestion and Absorption
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Carbohydrate Digestion and Absorption

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Questions and Answers

Which organ in the body is responsible for the inactivation of salivary amylase during carbohydrate digestion?

  • Pancreas
  • Liver
  • Stomach (correct)
  • Small intestine
  • Which type of carbohydrate is not digested in the small intestine?

  • Starch
  • Glucose polymers
  • Fibre (correct)
  • Disaccharides
  • Which enzymes are responsible for digesting maltose, sucrose, and lactose in the small intestine?

  • Salivary amylase
  • Intestinal cells (correct)
  • Pancreatic amylase
  • Bacterial enzymes
  • Which transporter is responsible for the absorption of fructose in the small intestine?

    <p>Fructose transporter (GLUT5)</p> Signup and view all the answers

    What impacts the rate of absorption of carbohydrates?

    <p>Amount of chewing</p> Signup and view all the answers

    Which chapter in the book 'Nutrition and Metabolism' discusses carbohydrate digestion and absorption?

    <p>Chapter 10</p> Signup and view all the answers

    Which organ in the body surrounds a substance forming a vesicle during active transport?

    <p>Cell membrane</p> Signup and view all the answers

    Which type of transport occurs down its concentration gradient facilitated by a membrane-bound transport protein?

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

    Which type of transport involves the movement of water?

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

    Which organ in the body is responsible for the digestion of carbohydrates using salivary amylase?

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

    Which enzyme inactivates salivary amylase during carbohydrate digestion?

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

    Which type of carbohydrate delays gastric emptying?

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

    Which transporter is responsible for the absorption of all three monosaccharides in the small intestine?

    <p>Monosaccharide transporter on the basolateral membrane</p> Signup and view all the answers

    What impacts the rate of absorption of carbohydrates?

    <p>Rate of gastric emptying</p> Signup and view all the answers

    Which book chapter discusses carbohydrate digestion and absorption?

    <p>Chapter 5 of 'Introduction to Human Nutrition'</p> Signup and view all the answers

    Which organ in the body surrounds a substance forming a vesicle during active transport?

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

    Which type of transport occurs down its concentration gradient facilitated by a membrane-bound transport protein?

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

    Which enzymes are responsible for digesting maltose, sucrose, and lactose in the small intestine?

    <p>Intestinal enzymes</p> Signup and view all the answers

    Which type of transport involves the movement of water?

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

    On a scale of 1 to 5, how difficult was this lecture?

    <p>3</p> Signup and view all the answers

    Study Notes

    Carbohydrate Digestion and Absorption

    • The stomach is responsible for the inactivation of salivary amylase during carbohydrate digestion.
    • Fiber is the type of carbohydrate that is not digested in the small intestine.
    • Enzymes such as maltase, sucrase, and lactase are responsible for digesting maltose, sucrose, and lactose in the small intestine.

    Carbohydrate Absorption

    • The GLUT5 transporter is responsible for the absorption of fructose in the small intestine.
    • The rate of absorption of carbohydrates is impacted by factors such as surface area, concentration gradient, and blood flow.

    Cellular Transport

    • The liver is the organ that surrounds a substance, forming a vesicle during active transport.
    • Facilitated diffusion is the type of transport that occurs down its concentration gradient, facilitated by a membrane-bound transport protein.
    • Osmosis is the type of transport that involves the movement of water.

    Additional Facts

    • The mouth is the organ responsible for the digestion of carbohydrates using salivary amylase.
    • Pepsin is the enzyme that inactivates salivary amylase during carbohydrate digestion.
    • Fiber is a type of carbohydrate that delays gastric emptying.
    • The SGLT1 and GLUT2 transporters are responsible for the absorption of all three monosaccharides in the small intestine.
    • Chapter 4 in the book 'Nutrition and Metabolism' discusses carbohydrate digestion and absorption.

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    Description

    Test your knowledge on carbohydrate digestion and absorption in human nutrition with this quiz. Learn about nutrient transport, absorption and circulation, and passive transport.

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