Nokea
Lysozyme breakdown
- A. Protein
- B. Sugar
- C. Bacterium
- D. Fat
Correct Answer: C
Rationale: Lysozyme targets and breaks down bacterial cell walls.
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Food and chyme are pushed through the digestive system by:
- A. ingestion
- B. mastication
- C. assimilation
- D. peristalsis
Correct Answer: D
Rationale: Peristalsis refers to the rhythmic contractions of smooth muscle that propel food and chyme through the digestive tract.
The pylorus is best described as the:
- A. Area of the stomach that accepts food from the esophagus
- B. Valve between the ileum and the cecum
- C. Terminal portion of the large intestine
- D. Area of the stomach that empties into the small intestine
Correct Answer: D
Rationale: The pylorus is the lower part of the stomach that connects to the duodenum.
How many muscles does the action of swallowing use?
- A. 92
- B. 6
- C. 60
- D. 29
Correct Answer: D
Rationale: Swallowing involves approximately 29 muscles, including those in the pharynx and esophagus, coordinated by the autonomic nervous system.
Stomach is the main site for the digestion of -
- A. Fats
- B. Carbohydrate
- C. Protein
- D. All of these
Correct Answer: C
Rationale: The stomach primarily digests proteins via pepsin.
A dysfunction of the parietal cells of gastric glands would result in a decreased production of which two of the following?
- A. mucus
- B. pepsinogen
- C. hydrochloric acid
- D. pepsin
Correct Answer: C
Rationale: Parietal cells secrete hydrochloric acid and intrinsic factor.