ATI RN
ATI RN Test Bank
Digestive System Practice Questions Questions
Question 1 of 4
is the instant source of energy.
Correct Answer: A
Rationale: Glucose is the body's primary and most immediate source of energy.
Question 2 of 4
Absorption of digested food chiefly occurs in-
Correct Answer: C
Rationale: The small intestine is the main site for nutrient absorption.
Question 3 of 4
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.
Question 4 of 4
Substances which are not related with hepatic portal circulation :-
Correct Answer: B
Rationale: Fatty acids are absorbed into lacteals and enter the lymphatic system, not the hepatic portal vein.