Digestion & Absorption

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Questions and Answers

What is the process of changing foodstuffs into smaller particles for absorption?

  • Fermentation
  • Absorption
  • Hydrolysis
  • Digestion (correct)

What type of enzymes act on proteins to break them down into amino acids?

  • Proteases (correct)
  • Lipases
  • Amylolytic enzymes
  • Nucleases

Where is ptyalin produced?

  • Small intestine
  • Salivary glands (correct)
  • Pancreas
  • Stomach

What is the function of ribonuclease and deoxyribonuclease?

<p>Breaking down nucleic acids (D)</p> Signup and view all the answers

What is the product of ptyalin and pancreatic amylase action on starch?

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

What is the product of the reaction catalyzed by lactase?

<p>Glucose and galactose (C)</p> Signup and view all the answers

Which enzyme acts on proteins in the stomach?

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

How are glucose and galactose transported across the intestinal epithelial cells?

<p>By facilitated diffusion requiring a high concentration of external Na ion (A)</p> Signup and view all the answers

What is the role of bile in the small intestine?

<p>To emulsify fats (B)</p> Signup and view all the answers

What is the fate of fatty acids in intestinal absorption?

<p>They are converted to triglycerides and transported as chylomicrons (B)</p> Signup and view all the answers

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