ATI RN
ATI RN Test Bank
Digestive System Practice Questions Questions
Question 1 of 5
Which substance of saliva destroy the harmful bacteria-
Correct Answer: C
Rationale: Lysozyme in saliva has antibacterial properties, breaking down bacterial cell walls.
Question 2 of 5
is the instant source of energy.
Correct Answer: A
Rationale: Glucose is the body's primary and most immediate source of energy.
Question 3 of 5
Which substance destroy the harmful bacteria in stomach?
Correct Answer: C
Rationale: HCl in the stomach kills harmful bacteria ingested with food.
Question 4 of 5
Absorption of digested food chiefly occurs in-
Correct Answer: C
Rationale: The small intestine is the main site for nutrient absorption.
Question 5 of 5
Enzyme maltase in human gut acts on food at a pH of -
Correct Answer: C
Rationale: Maltase works in the small intestine (pH > 7) to convert maltose into glucose.