Crash Course: Digestive System

1.  The process of digestion is run by the 

• Stomach

• autonomic nervous system

• Liver

1. The secret to good digestion is

• Strong stomach acid

• Maximizing surface area

• A lot of cud-chewing

Most absorption of nutrients occurs in the

• Large intestine

• Esophagus

• Small intestine

• Stomach

Bread is starch that breaks down into

• Amino acid

• Sucrose

• Glucose

The job of salivary amylase is to

• Break down proteins

• Break down fats

• Break down carbohydrates

Which terms refers to the movement of food through the digestive system

• Pharynx

• Peristalsis

• Epiglottis

• Bolus

1. Which component of gastric juice is most helpful in preventing the stomach from digesting itself?

• Pepsin

• Water

• 1. Hydrochloric acid (HCl)

• Mucus

Chyme is

• Chewed up food

• Waste leaving the body

• Food after it leaves the stomach

The two sphincters help to

• Regulate the amount of chyme that leaves the stomach

• Release acid

• Regulate the amount of water

The job of bicarbonate is to

• Neutralize the acids in the stomach

• Increase acidity

• Digest lipids