Nokea
Which of the following enzyme is secreted by pancreas -
- A. Maltase
- B. Trypsin
- C. Rennin
- D. Lactase
Correct Answer: B
Rationale: Trypsin, a proteolytic enzyme, is secreted by the pancreas.
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If a patient is experiencing an intensified sympathetic response, listening to the bowel sounds during auscultation would most likely reveal:
- A. An increase in both the rate and intensity of the bowel sounds
- B. An increase in the rate of bowel sounds accompanied by a decrease in intensity
- C. A decrease in both the rate and intensity of the bowel sounds
- D. Bowel sounds with a normal rate and intensity
Correct Answer: C
Rationale: Sympathetic activation inhibits GI motility (fight-or-flight response), reducing bowel sound rate and intensity.
Which of the following is not a function of saliva?
- A. to initiate protein digestion
- B. to aid in cleansing the teeth
- C. to lubricate the pharynx
- D. to assist in formation of the bolus
Correct Answer: A
Rationale: Saliva contains amylase for carbohydrate digestion, but it does not initiate protein digestion.
Which of the following hydrolytic enzymes act in low pH?
- A. Peroxidases
- B. Hydrolases
- C. Amylases
- D. Proteases
Correct Answer: D
Rationale: Proteases, such as pepsin, function optimally in the low pH environment of the stomach.
Which type of fat can cause heart disease if consumed in high quantities?
- A. carbohydrates
- B. saturated
- C. calories
- D. unsaturated
Correct Answer: B
Rationale: Saturated fats, when consumed excessively, can increase cholesterol levels, leading to heart disease.
Enzyme maltase in human gut acts on food at a pH of -
- A. More than 7 to change starch into maltose.
- B. Less than 7 to change starch into maltose.
- C. More than 7 to change maltose into glucose.
- D. Less than 7 to change maltose into glucose.
Correct Answer: C
Rationale: Maltase works in the small intestine (pH > 7) to convert maltose into glucose.