Nokea
After digestion, Protein is converted into ?
- A. Glucose
- B. Sucrose
- C. Fat
- D. Amino Acid
Correct Answer: D
Rationale: Proteins are broken down into amino acids during digestion, primarily by enzymes like pepsin in the stomach and trypsin in the small intestine, for absorption and use by the body.
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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.
Which of the following structures is a common passageway for both food and air?
- A. Nasopharynx
- B. Oropharynx
- C. Esophagus
- D. Trachea
Correct Answer: B
Rationale: The oropharynx serves as a common pathway for food (to the esophagus) and air (to the laryngopharynx and trachea), unlike the other options.
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.
During swallowing food is prevented from being pushed up into the nasal cavity by:
- A. Hard palate
- B. Epiglottis
- C. Soft palate
- D. Tongue
Correct Answer: C
Rationale: The soft palate elevates during swallowing to close off the nasopharynx, preventing food from entering the nasal cavity. The epiglottis prevents entry into the trachea.
Which of the following absorbed in proximal intestine?
- A. Iron
- B. Sodium
- C. Bile salts
- D. Vitamin B12
Correct Answer: A
Rationale: Iron is absorbed in the proximal small intestine (duodenum and jejunum).