Nokea
Which of the following cells secrete pepsinogen?
- A. Parietal cells
- B. Alpha cells
- C. Chief cells
- D. Stem cells
Correct Answer: C
Rationale: Chief cells in the stomach are responsible for secreting pepsinogen, which is then activated to pepsin by the acidic environment created by HCl.
You may also like to solve these questions
During prolonged fasting-
- A. First fats are used up, followed by carbohydrate from liver and muscles, and protein in the end
- B. First carbohydrate are used up, followed by fat and proteins towards end
- C. First lipids, followed by proteins and carbohydrates towards end.
- D. None of the above
Correct Answer: B
Rationale: In fasting, carbohydrates (glycogen) are used first, followed by fats, and then proteins.
Match: Villi
- A. projections in the small intestine that absorb nutrients
- B. storage structures
- C. enzyme producers
- D. muscular layers
Correct Answer: A
Rationale: Villi are finger-like projections in the small intestine that increase surface area for efficient nutrient absorption.
The greater omentum does not participate in:
- A. secretion of enzymes
- B. support and cushioning of the viscera
- C. storage of lipids
- D. protection against the spread of infection
Correct Answer: A
Rationale: The greater omentum provides structural support, lipid storage, and protection against infection spread, but it does not secrete enzymes.
Surface mucous cells show the following EXCEPT:
- A. Found in the isthmus of the fundic glands.
- B. Contain PAS +ve secretory granules.
- C. Secrete acidic mucous.
- D. Continuous with the covering epith of the stomach
Correct Answer: C
Rationale: Surface mucous cells secrete neutral to alkaline mucus, not acidic mucus, to protect the gastric mucosa.
Our food mainly contains-
- A. Carbohydrates
- B. Cellulose
- C. Sucrose
- D. Glucose
Correct Answer: A
Rationale: Carbohydrates are the primary component of most diets.