Nokea
Which process involves the use of nutrients inside cells?
- A. absorption
- B. assimilation
- C. digestion
- D. ingestion
Correct Answer: B
Rationale: Assimilation involves the incorporation of absorbed nutrients into the cells for energy production or synthesis of new compounds.
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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.
Match: Lacteal
- A. absorbs fat within the villi
- B. transports oxygen
- C. produces mucus
- D. secretes enzymes
Correct Answer: A
Rationale: Lacteals are lymphatic capillaries within the villi that absorb dietary fats.
The absorption of fructose by intestinal mucosa is
- A. Co-transport mechanism
- B. Simple diffusion
- C. Facilitated transport
- D. Active transport
Correct Answer: C
Rationale: Fructose is absorbed via facilitated transport through GLUT5 transporters in the intestinal mucosa.
Space of Disse contain the following EXCEPT:
- A. Plasma
- B. Blood cells
- C. Lipocytes (ITO) cells
- D. Irregular microvilli projecting from hepatocytes
Correct Answer: B
Rationale: The space of Disse contains plasma, Ito cells, and hepatocyte microvilli, but blood cells remain in the sinusoids.
Carbohydrates are comprised of carbon, , and oxygen.
- A. iron
- B. hydrogen
- C. nitrogen
- D. sulfur
Correct Answer: B
Rationale: Carbohydrates consist of carbon, hydrogen, and oxygen in a specific ratio.