The Digestion Process

What is the first part of the body where the digestion process starts?

• Mouth

• Stomach

• Small intestine

• Esophagus

Which of the following is NOT a function of saliva?

• Helps start breaking down food

• Makes food easier to swallow

• Keeps the mouth healthy

• Absorbs nutrients into the blood

Saliva is produced by ______ glands.

• salivary

• sweat

• thyroid

• sebaceous

The oesophagus leads from the mouth to the stomach.

• True

• False

How much saliva can a person produce in a day, according to the fact box?

• Around 1 litre

• About 10 litres

• Only 100 millilitres

• Nearly 5 litres

What is the function of the stomach in the digestion process?

• It produces bile

• It holds food while it is broken down further

• It absorbs nutrients

• It stores sugar

What protects the stomach lining from being damaged by stomach acid?

• Enzymes

• Mucus

• Bile

• Chyme

Fill in the blank: Muscles in the wall of the ______ contract and churn the food around, breaking it down further into a thick liquid called chyme.

• stomach

• esophagus

• small intestine

• large intestine

How long does food typically stay in the stomach?

• 1-2 hours

• 2-5 hours

• 6-8 hours

• 10-12 hours

What are enzymes?

• Organs that digest food

• Special substances that help speed up chemical reactions

• Liquids that break down fats

• Muscles in the stomach