SCIE 4.2 The Human Digestive System

What is digestion? Digestion is the process of converting food into a form that can be ________ by the body.

• absorbed

• exhaled

• painted

• measured

Label the parts of the mouth in the diagram:

• teeth, tongue, oesophagus

• teeth, liver, stomach

• teeth, tongue, pancreas

• teeth, tongue, trachea

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

• Teeth tear and grind food into small pieces.

• Teeth produce saliva to digest food.

• Teeth absorb nutrients from food.

• Teeth transport food to the stomach.

What do taste buds on your tongue sense?

• Taste buds sense flavor.

• Taste buds sense temperature.

• Taste buds sense sound.

• Taste buds sense light.

Which of the following is NOT a function of saliva?

• Moisten food

• Soften food

• Break down food

• Absorb nutrients

Saliva contains enzymes that help break down food.

• True

• False

What is one of the major functions of the stomach?

• Temporary storage of food

• Absorption of nutrients

• Production of bile

• Filtration of blood

One of the major functions of the stomach is to ________ food with stomach enzymes.

• mix

• freeze

• evaporate

• paint

What is the main function of the stomach?

• It absorbs nutrients

• It mashes and churns food into smaller pieces

• It produces insulin

• It stores bile

What is one role of gastric juices in the stomach?

• They digest carbohydrates

• They help break down food and kill bacteria

• They produce vitamins

• They absorb water