Nokea
Which of the following is a key function of the liver?
- A. Produces bile for fat digestion
- B. Absorbs water
- C. Secretes saliva
- D. Moves food via peristalsis
Correct Answer: A
Rationale: The liver produces bile to emulsify fats, among other functions like detoxification and nutrient metabolism.
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Lipase breaks down molecules of fat into what?
- A. Fatty acids and sugars
- B. Fatty acids and glycerol
- C. Fatty acids and amino acids
- D. Fatty acids
Correct Answer: B
Rationale: Lipase hydrolyzes triglycerides into fatty acids and glycerol, which are then absorbed.
The greater omentum does not participate in:
- A. secretion of enzymes
- B. support and cushioning of the viscera
- C. storage of lipids
- D. protection against the spread of infection
Correct Answer: A
Rationale: The greater omentum provides structural support, lipid storage, and protection against infection spread, but it does not secrete enzymes.
Pancreatic juice contains a protein-splitting enzyme called:
- A. trypsin
- B. zymogen
- C. pepsin
- D. amylase
Correct Answer: A
Rationale: Trypsin is a pancreatic enzyme that digests proteins.
Match each term with the correct description: organs that filter blood to remove wastes collected from all cells
- A. urethra
- B. urinary system
- C. bladder
- D. kidneys
Correct Answer: D
Rationale: The kidneys filter blood to remove cellular wastes.
Optimum pH for salivary amylase
- A. 1.8
- B. 7.8
- C. 6.8
- D. 3.4
Correct Answer: C
Rationale: Salivary amylase (ptyalin) works optimally at a pH of around 6.8, close to neutral.