Nokea
is the instant source of energy.
- A. Glucose
- B. Fructose
- C. Galactose
- D. Maltose
Correct Answer: A
Rationale: Glucose is the body's primary and most immediate source of energy.
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Which listed substances are all broken down by the liver?
- A. alcohol, drugs, and progesterone
- B. drugs, adrenaline, and urea
- C. oestrogen, water, and drugs
- D. urea, alcohol, and drugs
Correct Answer: D
Rationale: The liver metabolizes various substances including urea, alcohol, and drugs.
Teeth adapted to shear food are:
- A. premolars
- B. canines
- C. incisors
- D. molars
Correct Answer: C
Rationale: Incisors are sharp-edged teeth designed for cutting or shearing food.
Centro acinar cells, all true except:
- A. Beginning of pancreatic duct system.
- B. Secrete bicarbonate ion (with intercalated ducts)
- C. Its secretion is controlled by secretin hormone
- D. Beginning of biliary duct system
Correct Answer: D
Rationale: Centroacinar cells are part of the pancreatic exocrine duct system, not the biliary system, which involves bile ducts.
Exocrine portion of pancreas show the following EXCEPT:
- A. Formed of pure serous acini with centroacinar cells
- B. Its duct system is rich in striated ducts
- C. Secretion of bicarbonate is stimulated by secretin hormone.
- D. Secretion of enzymes is stimulated by cholecystokinin
Correct Answer: B
Rationale: The pancreatic duct system has intercalated ducts, not striated ducts, which are characteristic of salivary glands.
Match each term with the correct description: produces enzymes
- A. rectum
- B. esophagus
- C. pancreas
- D. liver
Correct Answer: C
Rationale: The pancreas produces digestive enzymes that aid in breaking down food.