Nokea
Pancreatic juice contains a protein-splitting enzyme called:
- A. trypsin
- B. zymogen
- C. pepsin
- D. amylase
Correct Answer: A
Rationale: Trypsin is a pancreatic enzyme that digests proteins.
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A client is to have a sigmoidoscopy to examine the sigmoid area of the gastrointestinal system. In teaching the client about the procedure, the nurse would explain that the purpose of the procedure is to examine the:
- A. Distal large intestine
- B. Stomach and small intestine
- C. Liver
- D. Pancreas
Correct Answer: A
Rationale: A sigmoidoscopy examines the sigmoid colon, part of the distal large intestine.
One of the following is not true about the enteroendocrine cells:
- A. They are present in the stomach, small intestine and large intestine.
- B. They are of two types open and closed.
- C. They deliver their secretions only in the git lumen.
- D. They are also called argentaffine cells
Correct Answer: C
Rationale: Enteroendocrine cells release hormones into the bloodstream (endocrine function), not just the GIT lumen.
Number of teeth which are monophyodont in man is-
- A. 4
- B. 22
- C. 32
- D. 12
Correct Answer: D
Rationale: Humans have 12 monophyodont teeth (premolars and molars), which erupt only once, unlike diphyodont teeth (incisors, canines) that replace milk teeth.
Which of the following substances is considered inorganic?
- A. minerals
- B. fats
- C. carbohydrates
- D. proteins
Correct Answer: A
Rationale: Minerals are inorganic substances, unlike fats, carbohydrates, and proteins, which are organic.
Which of the following hormones stimulates the production of pancreatic juice and bicarbonate?
- A. Insulin and glucagon
- B. Cholecystokinin and secretin
- C. Gastrin and insulin
- D. Angiotensin and epinephrine
Correct Answer: B
Rationale: Secretin and cholecystokinin stimulate the pancreas to release pancreatic juice and bicarbonate.