Human Digestive System Overview

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Questions and Answers

Which organ secretes an enzyme that breaks down starch into sugar?

  • Liver
  • Oesophagus
  • Salivary glands (correct)
  • Pancreas

What is the role of enzymes in the process of digestion?

  • Assimilating nutrients into the bloodstream
  • Speeding up chemical reactions in cells (correct)
  • Breaking down food in the mouth
  • Lubricating food for easier swallowing

How do enzymes contribute to the digestion of food in the human body?

  • By transporting food through the alimentary canal
  • By breaking down complex substances into simpler ones (correct)
  • By producing energy during digestion
  • By absorbing nutrients from food

Which organ is responsible for producing bile to aid in fat digestion?

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

What is the main function of the salivary glands in the digestive system?

<p>Breaking down starch into sugar (A)</p> Signup and view all the answers

What is the function of the pancreas in the digestive system?

<p>Secreting enzymes for digestion (A)</p> Signup and view all the answers

Which enzyme helps in breaking down fats during digestion?

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

What is the role of liver secretions in the process of digestion?

<p>Producing bile to emulsify fats (C)</p> Signup and view all the answers

What happens to enzymes after they have catalyzed a chemical reaction?

<p>They remain unchanged and can be reused. (B)</p> Signup and view all the answers

Which enzyme is responsible for breaking down proteins during digestion?

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

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