Some examples from this set of practice questions
1.
What is the primary function of the digestive system?
Answer: To break down food into nutrients that the body can absorb and use for energy, growth, and repair.
2.
What are the main parts of the digestive system?
Answer: The mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.
3.
What role does the mouth play in digestion?
Answer: It mechanically breaks down food with chewing and chemically breaks it down with saliva.
4.
What is the function of saliva in the digestive system?
Answer: Saliva contains enzymes that begin the chemical digestion of carbohydrates and lubricates food for easier swallowing.
5.
What is the esophagus and its function?
Answer: A muscular tube that connects the throat to the stomach and transports swallowed food and liquids.
6.
What is peristalsis?
Answer: The series of muscle contractions that move food through the digestive tract.
7.
What is the function of the stomach?
Answer: To mix and churn food with digestive juices, including hydrochloric acid and enzymes, to form chyme.
8.
What are gastric juices and their role?
Answer: Secretions from the stomach lining that contain hydrochloric acid and digestive enzymes to break down proteins.
9.
What is the small intestine and its function?
Answer: A long, coiled tube where most digestion and absorption of nutrients occur.
10.
What are the three parts of the small intestine?
Answer: The duodenum, jejunum, and ileum.
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