Nokea
Which process matches the definition: The uptake of substances by the GI tract?
- A. Absorption
- B. Ingestion
- C. Peristalsis
- D. Assimilation
Correct Answer: A
Rationale: Absorption is the process by which nutrients are taken up from the GI tract into the bloodstream.
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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.
Secretion of enterogastrone would be stimulated by the presence of:
- A. protein in the small intestine
- B. protein in the stomach
- C. fat in the small intestine
- D. fat in the stomach
Correct Answer: C
Rationale: Enterogastrone secretion is triggered by fats in the small intestine to slow gastric emptying.
Proteins are composed of substances called
- A. lipids
- B. amino acids
- C. carbohydrates
- D. nucleotides
Correct Answer: B
Rationale: Proteins are polymers of amino acids, their fundamental building blocks.
Fully digested food reaches to liver by
- A. Hepatic portal vein
- B. Hepatic artery
- C. Hepatic vein
- D. All the above
Correct Answer: A
Rationale: Nutrients from digested food reach the liver via the hepatic portal vein.
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.