Digestive System

1. What is the main function of the digestive system?

• A. Pump blood
  

• B. Break down food
  

• C. Send signals to the brain
  

2. Where does digestion begin?

• A. Stomach
  

• B. Mouth
  

• C. Small intestine
  

3. Which organ produces saliva?

• A. Liver
  

• B. Mouth
  

• C. Small intestine
  

4. What is the tube that connects the mouth to the stomach?

• A. Trachea
  

• B. Intestine
  

• C. Esophagus
  

5. Which organ stores bile?

• A. Pancreas
  

• B. Gallbladder
  

• C. Kidney
  

6. What is the function of bile?

• A. Absorb vitamins
  

• B. Break down fat
  

• C. Digest proteins
  

7. Which organ is responsible for most nutrient absorption?

• A. Large intestine
  

• B. Stomach
  

• C. Small intestine
  

8. What organ produces digestive enzymes and insulin?

• A. Pancreas
  

• B. Liver
  

• C. Gallbladder
  

9. Which part of the digestive system absorbs water?

• A. Stomach
  

• B. Large intestine
  

• C. Small intestine
  

10. What is the name of the acid found in the stomach?

• A. Hydrochloric acid
  

• B. Sulfuric acid
  

• C. Nitric acid