Nokea
In which regions of the alimentary canal does amylase act?
- A. mouth cavity and pancreas
- B. mouth cavity and ileum
- C. stomach and pancreas
- D. stomach and ileum
Correct Answer: A
Rationale: Amylase acts in the mouth cavity and is also secreted by the pancreas into the duodenum.
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A client is to have a sigmoidoscopy to examine the sigmoid area of the gastrointestinal system. In teaching the client about the procedure, the nurse would explain that the purpose of the procedure is to examine the:
- A. Distal large intestine
- B. Stomach and small intestine
- C. Liver
- D. Pancreas
Correct Answer: A
Rationale: A sigmoidoscopy examines the sigmoid colon, part of the distal large intestine.
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.
What do you mean by the process of digestion?
- A. Conversion of complex substances into simpler form
- B. Absorption of monomers by the body
- C. Conversion of monomers into polymers
- D. Absorption of water and food
Correct Answer: A
Rationale: Digestion is the breakdown of complex food substances into simpler forms for absorption.
Match: Monosaccharide
- A. simplest component of a carbohydrate
- B. building block of proteins
- C. component of nucleic acids
- D. form of stored energy
Correct Answer: A
Rationale: Monosaccharides, such as glucose, are the simplest units of carbohydrates and serve as immediate energy sources.
Which of the following substances is considered inorganic?
- A. minerals
- B. fats
- C. carbohydrates
- D. proteins
Correct Answer: A
Rationale: Minerals are inorganic substances, unlike fats, carbohydrates, and proteins, which are organic.