Nokea
A client with an elevated amylase level asks the nurse about the altered value. The nurse bases a response on knowledge that amylase:
- A. Is an enzyme from the pancreas needed for carbohydrate digestion
- B. Plays no significant role in physiological processes
- C. Is an enzyme from the pancreas needed for fat digestion
- D. Is an enzyme from the pancreas that is the major component of bile
Correct Answer: A
Rationale: Amylase, produced by the pancreas, digests carbohydrates into sugars.
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If an incision had to be made in the small intestine to remove an obstruction, which tunica would be cut first?
- A. muscularis
- B. mucosa
- C. submucosa
- D. serosa
Correct Answer: D
Rationale: The serosa is the outermost layer of the small intestine and would be the first layer cut during surgery.
If an incision had to be made in the small intestine to remove an obstruction, which tunica would be cut first?
- A. muscularis
- B. mucosa
- C. submucosa
- D. serosa
Correct Answer: D
Rationale: The serosa is the outermost layer of the small intestine and would be the first layer cut during surgery.
Match: Polysaccharide
- A. starch or cellulose
- B. composed of amino acids
- C. used for insulation
- D. makes up cell membranes
Correct Answer: A
Rationale: Polysaccharides, such as starch and cellulose, are complex carbohydrates that store energy or provide structural support.
What are the substrate and end-products of digestion by the enzyme lipase?
- A. substrate: triglycerides, end-products: fatty acids and glycerol
- B. substrate: proteins, end-products: amino acids
- C. substrate: carbohydrates, end-products: monosaccharides
- D. substrate: nucleic acids, end-products: nucleotides
Correct Answer: A
Rationale: Lipase hydrolyzes triglycerides into their component fatty acids and glycerol.
In the buccal cavity of human being, digestion of which one of the following get started?
- A. Protein
- B. Fat
- C. Carbohydrates
- D. Nucleic acids
Correct Answer: C
Rationale: The digestion of carbohydrates begins in the buccal cavity due to the action of salivary amylase, which breaks down starches into simpler sugars.