what is the digestive system?

Multiple Choice

What is the main function of the digestive system?

• To pump blood around the body

• To break down food into nutrients

• To remove oxygen from the blood

• To control body temperature

Multiple Choice

The digestive system is an organ system that breaks down food in humans and other:

• Reptiles

• Birds

• Mammals

• Fish

Multiple Choice

Why do humans need to break down food during digestion?

• To remove waste quickly

• To store food in the stomach

• To release energy and nutrients

• To cool down the body

Multiple Choice

The digestive system is also known as an exchange system because it:

• Swaps oxygen and carbon dioxide

• Exchanges materials with the environment

• Exchanges signals with the brain

• Exchanges heat with the skin

Multiple Choice

Which of the following is taken into the body by the digestive system?

• Oxygen

• Carbon dioxide

• Nutrients

• Waste

Multiple Choice

Which substance is released by the digestive system to help with digestion?

• Insulin

• Oxygen

• Bile

• Carbon dioxide

Multiple Choice

What does bile help with during digestion?

• Breaking down proteins

• Breaking down fats

• Absorbing oxygen

• Digesting fibre

Multiple Choice

Which statement best describes the digestive system?

• A system that only removes waste

• A system that only absorbs water

• A system that breaks down food and absorbs nutrients

• A system that controls breathing

Multiple Choice

True or False: The digestive system exchanges biological materials with it's environment.

• True

• False

Multiple Choice

Which keyword best completes this sentence?
The digestive system breaks food down into ______ that the body can use.

• Waste

• Nutrients

• Liquids

• Gases