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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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.
All about Striated ducts is true EXCEPT:
- A. Are ion transporting cells
- B. Present in all salivary glands
- C. Present in exocrine portion of pancreas
- D. Show basal acidophilic striations.
Correct Answer: C
Rationale: Striated ducts are found in salivary glands, not the exocrine pancreas, which has intercalated ducts instead.
What happens during the oral phase of digestion?
- A. Food is chewed and mixed with saliva
- B. Chyme is formed with gastric juice
- C. Nutrients are absorbed
- D. Waste is expelled
Correct Answer: A
Rationale: In the oral phase, food is mechanically broken down by chewing and mixed with saliva to begin starch digestion.
Match each term with the correct description: tubes that lead from each kidney to the bladder
- A. urethra
- B. urinary system
- C. ureters
- D. kidneys
Correct Answer: C
Rationale: The ureters are tubes transporting urine from the kidneys to the bladder.
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.