Digestive System Quiz

What is the primary function of salivary glands in digestion?

• Break down proteins

• Produce bile

• Secrete amylase to start carbohydrate digestion

• Neutralize stomach acid

Which organ produces gastric juice containing hydrochloric acid and pepsin?

• Small intestine

• Stomach

• Liver

• Pancreas

Which of the following is NOT a function of bile?

• Emulsify fats

• Neutralize stomach acids

• Break down carbohydrates

• Aid in fat absorption

What role does the pancreas play in digestion?

• Secretes enzymes like lipase and amylase for chemical digestion in the small intestine

• Produces bile to break down fats

• Secretes hydrochloric acid to digest proteins

• Absorbs water from digested food

What is the primary function of intestinal juice produced by the small intestine?

• Break down proteins into amino acids

• Start digestion of carbohydrates in the mouth

• Absorb fats into the bloodstream

• Continue enzymatic digestion of carbohydrates and proteins

Which of the following describes mechanical digestion?

• Enzymatic breakdown of nutrients into smaller molecules

• Physical breakdown of food into smaller pieces

• Production of bile to emulsify fats

• Release of pancreatic juice into the small intestine

Where does peristalsis occur in the digestive system?

• Buccal cavity

• Esophagus

• Liver

• Pancreas

What is the first step in digestion?

• Absorption of nutrients

• Elimination of waste

• Ingestion of food

• Chemical breakdown of proteins

Which enzyme is responsible for breaking down proteins in the stomach?

• Amylase

• Lipase

• Pepsin

• Bile

What happens in the large intestine during digestion?

• Nutrients are absorbed into the bloodstream

• Proteins are broken down by enzymes

• Bacteria ferment some cellulose and produce vitamins

• Fats are emulsified by bile