Question

The main cause of acidity in the stomach is:
1.Release of additional gastric acids which decrease the pH level.
2.Indigestion and pain in the intestine.
3.Increase the pH level within the stomach.
4.Release of additional bile juice which increases the alkaline medium in the stomach.

Answer 1

Hint: We'll discuss what acidity is and what causes acidity within the stomach. Gastric acid or stomach acid could also be a digestive fluid formed within the stomach lining. Gastric acid is regulated in feedback systems to increase production when needed, like after a meal.

Complete step by step answer: Composed of HCl, KCl or NaCl (common salt), gastric acid plays a key role in digestion of proteins by activating digestive enzymes, which together break down the long chains of amino acids of proteins. Other cells within the stomach produce bicarbonate, a base, to buffer the fluid, ensuring a regulated pH. These cells also produce mucus – a viscous barrier to prevent gastric acid from damaging the stomach. The pancreas further produces large amounts of bicarbonate and secretes bicarbonate through the duct to the duodenum to neutralize gastric acid passing into the alimentary tract.
Hence the Option A is Correct.

Additional information: The main constituent of gastric acid is acid produced by parietal cells within the gastric glands within the stomach. Its secretion could also be a posh and relatively energetically expensive process. Parietal cells contain an in-depth secretory network (called canaliculi) from which the acid is secreted into the lumen of the stomach. The pH of gastric acid is 1.5 to 3.5 within the human stomach lumen, A level maintained by the proton pump H+/K+ ATPase. The parietal cell releases bicarbonate into the bloodstream within the method , which causes a short-lived rise of pH within the blood, mentioned as an alkaline tide.


Note: The enzyme carbonic anhydrase catalyses the reaction between CO­2 and water to form acid . This acid immediately dissociates into hydrogen and bicarbonate ions. The hydrogen ions leave the cell through H+/K+ ATPase antiporter pumps.