Nokea
The large intestine lacks:
- A. goblet cells
- B. epiploic appendages
- C. plicae circulares
- D. haustra
Correct Answer: C
Rationale: The large intestine lacks plicae circulares, which are present in the small intestine to increase surface area.
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Which process matches the definition: The process of distributing absorbed nutrients to the cells of the body for growth and repair?
- A. Ingestion
- B. Absorption
- C. Assimilation
- D. Peristalsis
Correct Answer: C
Rationale: Assimilation involves distributing absorbed nutrients to body cells for use.
Striated ducts, the following is true except:
- A. Lined by ion transporting cells
- B. Contain basal basophilic granules
- C. Contain basal acidophilic granules
- D. Present in salivary gland duct system.
Correct Answer: B
Rationale: Striated ducts have basal acidophilic striations due to mitochondria, not basophilic granules.
Trypsin is an endopeptidase. What does this mean?
- A. It breaks the protein from the ends and middle forming smaller molecules
- B. It breaks the protein from the ends forming amino acids
- C. It breaks down carbohydrates forming sugars
- D. It breaks the protein in the middle of the molecule forming smaller polypeptides
Correct Answer: D
Rationale: Trypsin, an endopeptidase, cleaves peptide bonds within protein chains, producing smaller polypeptides.
Isthmus of fundic [gastric] gland contain the following except:
- A. Surface epithelial cells
- B. Parietal cells
- C. Chief cells.
- D. Stem cells
Correct Answer: C
Rationale: The isthmus contains stem cells, surface epithelial cells, and parietal cells, but chief cells are found deeper in the gland body and base.
Carboxypeptidase requires _______ for its activity
- A. Copper
- B. Niacin
- C. Iron
- D. Zn
Correct Answer: D
Rationale: Carboxypeptidase is a zinc-dependent enzyme that breaks down proteins into amino acids.