Nokea
The contraction and expansion of the walls of food pipe is called movement.
- A. Peristalsis
- B. Gastric
- C. Oscillatory
- D. Diastolic
Correct Answer: A
Rationale: Peristalsis is a type of wave-like movement occurring in the alimentary canal which involves contraction and relaxation of the muscles. It begins in the esophagus and helps to move the food along the alimentary canal for the process of digestion.
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Brunner's gland are found in which of the following layers :
- A. Submucosa of stomach
- B. Mucosa of ileum
- C. Submucosa of duodenum
- D. Mucosa of oesophagus
Correct Answer: C
Rationale: Brunner's glands are located in the submucosa of the duodenum.
Into which tubes do the nephrons drain?
- A. Proximal convoluted tubule
- B. Collecting duct
- C. Distal convoluted
- D. Ureter
Correct Answer: B
Rationale: Nephrons drain into collecting ducts, which lead to the ureter.
Na+ and other carrier ions facilitate absorption of
- A. Amino acids and fructose
- B. Fatty acids and glycerol
- C. Fatty acids and glucose
- D. Amino acids and glucose
Correct Answer: D
Rationale: Sodium ions (Na+) facilitate the absorption of amino acids and glucose through symport mechanisms.
Where are the osmoreceptors located?
- A. Kidney
- B. Hypothalamus
- C. Pituitary
- D. Liver
Correct Answer: B
Rationale: Osmoreceptors in the hypothalamus detect blood osmolarity changes.
Which type of digestion breaks down pieces of food into small molecules?
- A. chemical digestion
- B. peristalsis digestion
- C. mechanical digestion
- D. absorption digestion
Correct Answer: A
Rationale: Chemical digestion uses enzymes to break food into small molecules.