The nurse reminds the patient that the salivary glands excrete saliva, which starts the digestion of
Starches
Fat
Protein
Fiber
The Correct Answer is A
A. Saliva contains enzymes like amylase that break down starches into simpler sugars, initiating their digestion in the mouth.
B. Fat digestion primarily starts in the small intestine with the action of bile and pancreatic lipase.
C. Protein digestion begins in the stomach with the action of enzymes like pepsin.
D. Fiber is not digested by enzymes in the human digestive system, though it aids in digestion and promotes bowel movements.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Wheat toast with a peeled apple contains fiber from the apple but might have less fiber compared to other whole-grain options.
B. A biscuit and grapefruit might provide some fiber from the grapefruit, but the biscuit might not be high in fiber.
C. Shredded wheat is a whole-grain cereal that tends to be higher in fiber, and adding a banana further increases the fiber content.
D. White toast with an orange provides some fiber from the orange, but white toast itself lacks significant fiber content compared to whole-grain options like shredded wheat.
Correct Answer is C
Explanation
A. The duodenum is the first part of the small intestine but is not the primary site for vitamin B12 absorption. It's primarily absorbed in the lower part of the small intestine called the ileum.
B. While the stomach plays a role in releasing intrinsic factor that aids in B12 absorption, the actual absorption occurs in the small intestine, particularly the ileum.
C. Vitamin B12 absorption primarily occurs in the lower part of the small intestine, facilitated by intrinsic factors.
D. The large intestine is mainly responsible for water absorption and electrolyte balance, not vitamin B12 absorption.
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