Nokea
Which enzyme helps break down fats in the digestive process?
- A. lipase
- B. pepsin
- C. papain
- D. amylase
Correct Answer: A
Rationale: Lipase is the enzyme responsible for breaking down fats into fatty acids and glycerol during digestion.
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Which of the following parts of the alimentary canal bears villi?
- A. Stomach.
- B. Ileum.
- C. Oesophagus.
- D. Rectum.
Correct Answer: B
Rationale: The ileum, part of the small intestine, contains villi that increase the surface area for nutrient absorption.
Proteolytic enzyme of stomach is -
- A. Trypsin
- B. Pepsin
- C. Chymotrypsin
- D. Carboxypeptidase
Correct Answer: B
Rationale: Pepsin is the main proteolytic enzyme in the stomach, active in acidic pH.
The nurse is caring for a client who is returning from the operating room following a cholecystectomy, or removal of the gallbladder. The nurse knows that the function of the gallbladder is to:
- A. Manufacture bile
- B. Concentrate bile
- C. Remove toxins from the blood
- D. Make albumin
Correct Answer: B
Rationale: The gallbladder concentrates and stores bile produced by the liver.
Which process matches the definition: Rhythmic contraction and relaxation of smooth muscle that propel food along the digestive tract?
- A. Ingestion
- B. Peristalsis
- C. Assimilation
- D. Absorption
Correct Answer: B
Rationale: Peristalsis is the rhythmic muscular action that moves food through the digestive tract.
Urine leaves the body through a tube called
- A. the urethra
- B. the ureter
- C. the bladder
- D. the nephron
Correct Answer: A
Rationale: The urethra is the tube through which urine exits the body.