Mechanical Digestion - Class Starter Quiz

1. Where does the process of mechanical digestion occur?

• Occurs in the stomach
• Occurs in the small intestine
• Occurs in the mouth (teeth) through a process called mastication
• Occurs in the large intestine

2. What is the role of teeth in digestion?

• They release enzymes and chemicals that dissolve food
• They break food into easy to swallow pieces
• They produce saliva which moistens food
• They contain taste buds which aid in nutrition

3. Which of the following is a physical change to food that occurs in the mouth?

• It is neutralised using basic compounds from the liver.
• It is converted to chyme.
• It is formed into a bolus.
• It is acidified using hydrochloric acid.

4. Cows eat plants, which they need to squash and crush. Therefore, they tend to have large:

• Incisors
• Canine teeth
• Premolars
• Molars

5. Lions rip flesh from their prey. Therefore, they tend to have large:

• Bicuspids
• Molars
• Canine teeth
• Premolars

6. Human adults have ____ teeth?

• 32
• 20
• 25
• 40

7. The _____ is the innermost layer of the tooth and contains the nerve.

• dentin
• crown
• pulp
• enamel