Gr5_Digestive system 1

What is the primary purpose of digestion?

• To make food taste better.

• To break down large food particles into smaller, absorbable pieces.

• To store food for later use.

• To remove waste from the body.

Which of the following processes occurs in the mouth during digestion?

• Absorption of nutrients into the bloodstream.

• Breakdown of proteins.

• Chewing food into smaller pieces and mixing with saliva.

• Absorption of water from undigested food.

Food pipe is also known as _____

• trachea

• wind pipe

• oesophagus

How long does food stay in the stomach, and what happens there?

• 1 hour; fats are broken down.

• 2 hours; water is absorbed.

• 4 hours; acids and enzymes break down food and kill bacteria.

• 6 hours; nutrients are absorbed into the blood.

What is the main function of the small intestine in the digestive process?

• To chew food and mix it with saliva.

• To store food for several hours.

• To absorb broken-down food particles and transfer them to the blood.