Quiz on the Human Digestive System

What is the primary function of the small intestine?

• Chews food

• Main site of nutrient absorption

• Stores bile

• Absorbs water

Which enzyme is responsible for breaking down starch into sugars?

• Trypsin

• Lipase

• Amylase

• Pepsin

What is the role of the liver in digestion?

• Stores and releases bile

• Produces bile to emulsify fats

• Breaks down proteins

• Absorbs nutrients

Which organ transports food from the mouth to the stomach?

• Small Intestine

• Stomach

• Large Intestine

• Esophagus

What is the function of the rectum?

• Produces digestive enzymes

• Begins chemical digestion

• Stores and expels feces

• Absorbs water

How long is the small intestine approximately?

• 3 meters

• 6 meters

• 9 meters

• 12 meters

What is the main action of pepsin?

• Emulsifies fats

• Breaks down fats

• Breaks down starch

• Breaks down proteins

Which part of the digestive system absorbs water and forms feces?

• Large Intestine

• Stomach

• Pancreas

• Small Intestine

What is the function of lipase?

• Emulsifies starch

• Breaks down fats

• Breaks down proteins

• Breaks down carbohydrates

What is the first step in the digestive process?

• Absorption

• Elimination

• Digestion

• Ingestion