Understanding the Digestive System

What is the first process of digestion that occurs in the mouth?

• Absorption

• Ingestion

• Defecation

• Propulsion

Which organ is responsible for the chemical breakdown of proteins?

• Mouth

• Esophagus

• Stomach

• Large intestine

What is the primary function of the small intestine in the digestive process?

• Ingest food

• Absorb nutrients

• Propel food to the stomach

• Eliminate feces

Which of the following is an example of mechanical digestion?

• Enzyme secretion

• Chewing

• Hormone release

• Nutrient absorption

What is the role of bile produced by the liver?

• Break down proteins

• Emulsify lipids

• Absorb carbohydrates

• Neutralize stomach acid

Which process involves the movement of food through the digestive tract?

• Ingestion

• Propulsion

• Absorption

• Defecation

What is the function of the pancreas in digestion?

• Store bile

• Produce digestive enzymes

• Absorb water

• Chew food

Which of the following is NOT a function of the stomach?

• Mix food with gastric juices

• Begin chemical breakdown of proteins

• Absorb most nutrients

• Release food into the duodenum

What is the final step in the digestive process?

• Ingestion

• Absorption

• Defecation

• Propulsion

Which type of receptor in the alimentary canal detects mechanical stimuli?

• Chemoreceptors

• Mechanoreceptors

• Osmoreceptors

• Photoreceptors