Nokea
All about hepatocyte is true EXCEPT:
- A. Has 3 types of borders
- B. May be binucleated
- C. Secrete bile
- D. Has long microvilli forming brush border
Correct Answer: D
Rationale: Hepatocytes have microvilli facing the space of Disse, but not a brush border, which is characteristic of intestinal enterocytes.
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Fungiform papillae are most numerous in:
- A. Pharyngeal part of the tongue [post. 1/3rd]
- B. Oral part of the tongue
- C. Edges & tip of tongue.
- D. Basolateral area of oral part of the tongue.
Correct Answer: B
Rationale: Fungiform papillae are scattered across the oral part of the tongue but are most concentrated at the edges and tip, where taste perception is heightened.
Food tests were carried out on four different substances. Which substance contained both protein and reducing sugar?
- A. substance A
- B. substance B
- C. substance C
- D. substance D
Correct Answer: A
Rationale: Substances testing positive for both the biuret test (protein) and Benedict's test (reducing sugar) indicate the presence of both protein and reducing sugars.
Where in the nephron is most of the glucose reabsorbed back into the blood?
- A. Proximal convoluted tubule
- B. Distal convoluted tubule
- C. Loop of Henle
- D. Henley upon Thames
Correct Answer: A
Rationale: Most glucose is reabsorbed in the proximal convoluted tubule via active transport.
Which one differ from the category of other three-
- A. Gastrin
- B. Glucagon
- C. Secretin
- D. Ptyalin
Correct Answer: D
Rationale: Ptyalin is an enzyme, while the others are hormones.
The pancreas makes the following hormones:
- A. Oestrogen and progesterone
- B. Insulin and Glucagon
- C. Testosterone and Oestrogen
- D. Anti Diuretic Hormone and adrenalin
Correct Answer: B
Rationale: The pancreas produces insulin and glucagon to regulate blood sugar.