THE DIGESTIVE SYSTEM

What is the main function of the digestive system?

• To break down food

• To circulate blood

• To produce hormones

• To absorb oxygen

Digestion begins in the:

• Stomach

• Esophagus

• Mouth

• Small intestine

Which organ produces saliva?

• Liver

• Salivary glands

• Pancreas

• Kidney

Which enzyme in saliva starts breaking down starch?

• Protease

• Lipase

• Amylase

• Lactase

What is the function of the esophagus?

• Produces bile

• Mixes food

• Absorbs nutrients

• Carries food to the stomach

What type of digestion occurs in the stomach?

• Only physical

• Only chemical

• Both physical and chemical

• No digestion occurs

What acid is present in the stomach?

• Acetic acid

• Hydrochloric acid

• Nitric acid

• Sulfuric acid

What is the role of bile in digestion?

• Digests protein

• Neutralizes acid

• Breaks down fat

• Absorbs water

Where is bile stored?

• Pancreas

• Stomach

• Gallbladder

• Large intestine

Which organ produces digestive enzymes and insulin?

• Liver

• Pancreas

• Kidney

• Heart