Human Digestive System Overview

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Questions and Answers

What is the main function of the teeth in the digestion process?

  • To absorb nutrients from food
  • To move food towards the stomach
  • To mix food with saliva
  • To crush food into smaller particles (correct)

What is the purpose of salivary amylase in digestion?

  • To mix food with water
  • To kill bacteria in food
  • To convert starch into simple sugars (correct)
  • To break down proteins into amino acids

What type of movements occur in the lining of the digestive canal?

  • Circular movements
  • Linear movements
  • Rotational movements
  • Peristaltic movements (correct)

What is the main function of the stomach in digestion?

<p>To mix food with digestive juices (C)</p> Signup and view all the answers

Why does the mouth 'water' when we eat something we like?

<p>Because the salivary glands secrete saliva (A)</p> Signup and view all the answers

What is the function of the tongue in digestion?

<p>To move food around the mouth during chewing (A)</p> Signup and view all the answers

What is the name of the pipe that carries food from the mouth to the stomach?

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

What happens to the stomach when food enters it?

<p>It expands to accommodate the food (C)</p> Signup and view all the answers

Why is it necessary to mix food with digestive juices?

<p>To break it down into smaller molecules (C)</p> Signup and view all the answers

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