Nokea
In which order do these events occur in human nutrition?
- A. digestion→ ingestion→ absorption→ assimilation
- B. digestion→ ingestion→ assimilation→ absorption
- C. ingestion→ digestion→ absorption→ assimilation
- D. ingestion→ digestion→ assimilation→ absorption
Correct Answer: C
Rationale: Food is first ingested, then digested, absorbed into the bloodstream, and finally assimilated into cells.
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All the following are contents of space of Disse except:
- A. Pit cells
- B. Unmyelinated nerve fibers
- C. Ito cells
- D. Kupffer cells
Correct Answer: D
Rationale: Kupffer cells are in the sinusoidal lumen, not the space of Disse, which contains Ito cells, plasma, and microvilli.
Match each term with the correct description: waste liquid containing water, salts, and wastes
- A. urethra
- B. urinary system
- C. bladder
- D. urine
Correct Answer: D
Rationale: Urine is the waste liquid containing water, salts, and metabolic wastes.
Which of the following is not a function of the pancreas?
- A. neutralization of gastric juice
- B. Production of amylase
- C. Secretion of lipases to break down fats into glycerol and fatty acids
- D. Secretion of pepsin
Correct Answer: D
Rationale: The pancreas does not secrete pepsin; this enzyme is produced by the stomach to digest proteins.
If the sphincter at the top of the stomach is not working properly what do we suffer from?
- A. Heart burn
- B. Constipation
- C. Heart attack
- D. Diarrhea
Correct Answer: A
Rationale: A malfunctioning lower esophageal sphincter allows acid reflux, causing heartburn. Constipation, heart attacks, and diarrhea are unrelated to this sphincter.
How many nephrons are found in each kidney?
- A. approximately one hundred
- B. approximately one thousand
- C. approximately one million
- D. approximately ten million
Correct Answer: C
Rationale: Each kidney contains about one million nephrons, the functional units for filtration.