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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The glomerular capillaries are where?
- A. Collecting duct
- B. Bowman's capsule
- C. Loop of Henle
- D. Proximal convoluted tubule
Correct Answer: B
Rationale: Glomerular capillaries are in Bowman's capsule, where filtration occurs.
Lipase is the enzyme that catalyses the breakdown of triacylglycerol into:
- A. Amino acids
- B. Lipids
- C. Fatty acids and glycerol
- D. Simple sugars
Correct Answer: C
Rationale: Lipase breaks down triacylglycerols into fatty acids and glycerol, aiding in the digestion and absorption of fats.
Micelle formation is necessary for the intestinal absorption of
- A. Galactose
- B. Vitamin B12
- C. Vitamin D
- D. Bile salts
Correct Answer: C
Rationale: Micelles, formed by bile salts, facilitate the absorption of fat-soluble vitamins like vitamin D in the small intestine.
Bilirubin and biliverdin are formed in-
- A. Kidney
- B. Liver
- C. Salivary glands
- D. Stomach
Correct Answer: B
Rationale: Bilirubin and biliverdin are bile pigments formed in the liver from hemoglobin breakdown.
Which gastric secretion is necessary for the absorption of vitamin B12 in the small intestine?
- A. Hydrochloric acid (HCl)
- B. Pepsinogen
- C. Intrinsic factor
- D. Mucus
Correct Answer: C
Rationale: Intrinsic factor, secreted by parietal cells in the stomach, binds to vitamin B12, enabling its absorption in the ileum of the small intestine.