Nokea
Which part of our body secrets pepsin?
- A. Liver
- B. Pancreas
- C. Thyroid gland
- D. Stomach
Correct Answer: D
Rationale: Gastric chief cells present in our stomach secrete pepsin. It is responsible for the digestion of proteins. The stomach is responsible for the digestion of food. It secretes HCl (Hydrochloric acid) to aid digestion.
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Match: Canines
- A. teeth used to grind meat
- B. teeth for tearing food
- C. teeth for crushing
- D. teeth for cutting
Correct Answer: B
Rationale: Canines are pointed teeth designed for tearing food, especially meat.
Fungiform papillae appear as red spots on tongue surface because:
- A. Secondary papillae are covered by the same epithelial cap
- B. Fungiform papillae have no taste buds.
- C. Covered by pseudostratified epith.
- D. Its connective tissue contains Von Ebner's glands
Correct Answer: A
Rationale: Fungiform papillae appear red due to their thin epithelium and rich vascularity in the connective tissue, not because of secondary papillae structure.
Formation of gallstones is referred to as:
- A. jaundice
- B. cirrhosis
- C. hepatitis
- D. cholelithiasis
Correct Answer: D
Rationale: Cholelithiasis is the medical term for the formation of gallstones.
Which of the following hormones is primarily responsible for stimulating the release of hydrochloric acid (HCl) from parietal cells during the gastric phase?
- A. Insulin
- B. Gastrin
- C. Glucagon
- D. Somatostatin
Correct Answer: B
Rationale: Gastrin, released by G cells, stimulates parietal cells to secrete HCl during the gastric phase of digestion.
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.