Biology · Science General

Human Digestive System

1,953 Questions

The human digestive system explores the breakdown of biomacromolecules, covering organs from the stomach to the small intestine. It involves physiological processes like chyme movement, pH levels, and nutrient absorption in the gut. These fundamental biology concepts are regularly featured in medical and general science competitive exams.

Small intestine functionsBiomacromolecule breakdownStomach and digestionIntestinal bacteria

Human Digestive System Questions

Multiple choice

Where are the Rokitansky-Aschoff sinuses located?

  1. Pancreas

  2. Liver

  3. Fundus of stomach

  4. Gall bladder
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Rokitansky-Aschoff sinuses are present in the gall bladder. These are pockets in the wall of gall bladder or the outpouchings of gall bladder mucosa into the gall bladder muscle layer.

Multiple choice

EGF (epidermal growth factor) is secreted by the sub-mandibular gland. It is biologically active in which of the following?

a. Healing of gastrointestinal ulcers b. Inhibition of gastric acid secretion c. Stimulation of DNA breakdown d. Activation of gastric enzymes

  1. Only a and b

  2. Only a, b and d

  3. Only b, c and d

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

EGF is produced by sub-mandibular gland and plays an important biological effect on salivary EGF, including the healing of oral and gastroesophageal ulcers and in the inhibition of gastric acid secretion.