Nokea
All enzymes involved in protein digestion are:
- A. secreted by the pancreas
- B. activated by HCl
- C. present in the stomach
- D. secreted in an inactive form
Correct Answer: D
Rationale: Protein-digesting enzymes like pepsinogen and trypsinogen are secreted in an inactive form and activated later.
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Which statement about chemical digestion in the human alimentary canal is correct?
- A. Digestion of carbohydrates is completed in the colon.
- B. Enzymes are secreted to break down cellulose in the duodenum.
- C. Protein digestion is completed in the ileum.
- D. The stomach secretes enzymes to break down starch.
Correct Answer: C
Rationale: Protein digestion begins in the stomach with pepsin and is completed in the ileum by proteolytic enzymes from the pancreas and intestinal mucosa.
Digestion of starch starts from the mouth, whereas ...A... is the site of digestion mainly for ...B... Choose the correct combination of options to complete the given statement.
- A. A-Stomach; B-Protein
- B. A-Stomach; B-Starch
- C. A-Small intestine; B-Protein
- D. A-Small intestine; B-Cellulose
Correct Answer: C
Rationale: The small intestine is the primary site for protein digestion, while starch digestion begins in the mouth.
Match: Disaccharide
- A. a sugar composed of two monosaccharides
- B. stored form of energy
- C. used in DNA synthesis
- D. component of cell membranes
Correct Answer: A
Rationale: Disaccharides, like sucrose, consist of two monosaccharides linked together and are broken down into simpler sugars during digestion.
When suggesting menu options to a group of senior citizens, the nurse is careful to include which of the following choices that would enhance normal physiology and prevent the problem of constipation?
- A. Whole grains
- B. Highly spiced or flavored foods
- C. Limiting fluids
- D. Salads and fresh fruits
Correct Answer: A
Rationale: Whole grains increase fiber intake, promoting bowel regularity and preventing constipation.
All enzymes involved in protein digestion are:
- A. secreted by the pancreas
- B. activated by HCl
- C. present in the stomach
- D. secreted in an inactive form
Correct Answer: D
Rationale: Protein-digesting enzymes like pepsinogen and trypsinogen are secreted in an inactive form and activated later.