Other questions in this quiz

2. What is the pH of bile? Why is this good for the enzymes?

  • Alkaline- helps the mouth chew more food
  • Acid- gives enzyme a greater surface area to work on
  • Alkaline- neutralises acid to make the conditions right for enzymes
  • Acid- helps to contribute to the low pH in the stomach

3. Chewing food in the mouth is a form of physical digestion. What is the other form?

  • The conversion of starch into maltose and then glucose
  • Water and minerals being absorbed into the blood by the large intestine
  • Squeezing food in the stomach
  • The liver making bile

4. What is the optimum pH of the protease enzyme?

  • pH 7
  • pH 10
  • pH1-2
  • pH 5-6

5. What enzyme breaks down carbohyrates?

  • Amylase
  • Proteases
  • Carbohydrases
  • Lipases


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