Nokea
Sweating during exercise will cause loss of water to the body. It is important to replace the water or could set in:
- A. leukemia
- B. dehydration
- C. heart disease
- D. diabetes
Correct Answer: B
Rationale: Dehydration occurs when water loss exceeds intake, a common risk during exercise.
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Amylase in saliva initiates digestion of:
- A. lipids
- B. proteins
- C. fats
- D. carbohydrates
Correct Answer: D
Rationale: Salivary amylase breaks down carbohydrates into simpler sugars.
When administered intravenously, this hormone has the capability to initiate a phase of robust sequential contractions in the proximal duodenum, which gradually moves towards the cecum:
- A. Cholecystokinin (CCK)
- B. Gastrin
- C. Motilin
- D. Secretin
Correct Answer: C
Rationale: Motilin triggers the migrating motor complex, initiating strong contractions from the duodenum to the cecum during fasting.
Out of four layers of alimentary canal, which one forms villi, (finger-like projection)?
- A. Serosa
- B. Mucosa
- C. Submucosa
- D. Muscularis
Correct Answer: B
Rationale: The mucosa layer forms villi, increasing the surface area for absorption in the small intestine.
Match: Lipid
- A. a fat made of three fatty acids joined to one glycerol
- B. composed of monosaccharides
- C. used for enzymatic activity
- D. major source of quick energy
Correct Answer: A
Rationale: Lipids, or triglycerides, consist of three fatty acids attached to a glycerol molecule and provide energy storage.
The muscular tube that extends from the mouth to the anus is called:
- A. the gullet
- B. the intestine
- C. the colon
- D. the alimentary canal
Correct Answer: D
Rationale: The alimentary canal, also known as the digestive tract, is the continuous muscular tube extending from the mouth to the anus, encompassing all digestive organs.