Quiz on the Digestive System

What is the first phase of the digestive process?

• Ingestion

• Absorption

• Secretion

• Defecation

Which process involves the breakdown of food into smaller molecules?

• Secretion

• Ingestion

• Digestion

• Absorption

What is the primary site of absorption in the digestive system?

• Stomach

• Large intestine

• Small intestine

• Esophagus

Which enzyme in the mouth digests carbohydrates?

• Pepsin

• Gastric lipase

• Salivary amylase

• Trypsin

What is the term for the elimination of indigestible substances from the body?

• Absorption

• Digestion

• Defecation

• Secretion

Which stage of deglutition is voluntary?

• Voluntary stage

• Pharyngeal stage

• Involuntary stage

• Esophageal stage

What is the role of hydrochloric acid in the stomach?

• Secretes enzymes

• Absorbs nutrients

• Kills microbes

• Digests carbohydrates

Which enzyme is responsible for digesting triglycerides in the stomach?

• Salivary amylase

• Gastric lipase

• Lingual lipase

• Pancreatic lipase

What is the main function of peristalsis in the digestive system?

• Absorption of nutrients

• Movement of food

• Digestion of proteins

• Secretion of enzymes

Which of the following enzymes breaks down lactose?

• Sucrase

• Amylase

• Lactase

• Maltase