Respiratory, Digestive, and Excretory System Quiz

What is the main function of the digestive system?

• To filter waste products from the blood and produce urine.

• To transport oxygen and nutrients to the body's cells.

• To break down food and absorb nutrients.

• To produce hormones and regulate metabolism.

Where does digestion begin?

• Stomach

• Large Intestine

• Small Intestine

• Mouth

Which one is NOT part of the digestive system?

• Stomach

• Kidney

• Mouth

• Esophagus

Which organ is responsible for absorbing nutrients from digested food?

• liver

• stomach

• pancreas

• small intestine

• esophagus
• liver
• stomach
• pancreas

Gastric juices in the stomach digest food into a thick liquid.  This is...

• Mechanical digestion
• Chemical digestion

The chewing and grinding of food into smaller pieces is an example of...

• Mechanical Digestion
• Chemical Digestion

What is the main function of the respiratory system?

• to break food down

• supply the blood with oxygen

• circulate the blood

• controlling the body

the main organs of the

respiratory system are-----?

• Diaphragm

• Respiratory System

• Trachea

• Lungs

• Carbon Dioxide

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air