Nokea
Zymogen cells of fundic glands show the following EXCEPT:
- A. Secrete gastric lipase
- B. Secrete rennin enzyme
- C. Present in the gland neck
- D. Secrete pepsinogen
Correct Answer: C
Rationale: Zymogen (chief) cells are located in the body and base of fundic glands, not the neck, and secrete pepsinogen and gastric lipase.
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Which of the following enzymes formed in the pancreas aids in protein digestion?
- A. Amylase
- B. Lipase
- C. Trypsinogen
- D. Trypsin
Correct Answer: D
Rationale: Trypsin, activated from trypsinogen, is a pancreatic enzyme that digests proteins.
Secretin and cholecystokinin are secreted in
- A. Pyloric region
- B. Ileum
- C. Duodenum
- D. Oesophagus
Correct Answer: C
Rationale: Secretin and cholecystokinin are secreted in the duodenum to regulate pancreatic and gallbladder activity.
What is the major function of the podocyte?
- A. To keep large molecules out of the nephron
- B. To strengthen the glomerular capillaries
- C. To act as macrophages in the kidney
- D. To detect chemical changes in the blood
Correct Answer: A
Rationale: Podocytes form a filtration barrier in Bowman's capsule, preventing large molecules from entering the filtrate.
Which organ is retroperitoneal?
- A. liver
- B. ileum
- C. stomach
- D. pancreas
Correct Answer: D
Rationale: The pancreas is a retroperitoneal organ, located behind the peritoneum.
Large, insoluble molecules have to be digested before they can be
- A. absorbed.
- B. assimilated.
- C. egested.
- D. ingested.
Correct Answer: A
Rationale: Large molecules must be broken down into smaller, soluble units before they can be absorbed across the intestinal lining.