Question

Which acid helps in the digestion of food without harming the stomach?
A.${H_2}S{O_4}$
B.$HCl$
C.$C{H_3}COOH$
D.${H_3}P{O_4}$

Answer 1

Hint: We need to know that the stomach secretions are composed of strong acid, a few chemicals, and a bodily fluid covering that secures the coating of your stomach. The acid encourages your body to separate, digest, and ingest supplements, for example, protein. It additionally disposes of microbes and infections in the stomach, shielding your body from disease.

Complete answer:
We have to know that Gastric juice consists of stomach related proteins, hydrochloric corrosive and different substances that are significant for retaining supplements – around 3 to 4 liters of gastric juice are created every day. The hydrochloric acid in the gastric juice separates the food and the stomach related compounds split up the proteins. The acidic gastric squeeze likewise eliminates microscopic organisms. The bodily fluid covers the stomach wall with a defensive covering. Along with the bicarbonate, this guarantees that the stomach wall itself isn't harmed by the hydrochloric corrosive.
We have to remember that the $HCl$ in the stomach lumen achieves four things. It assists break with bringing down ingested tissues for assault by stomach related proteins; it gives the right pH to the activity of those compounds; it changes a chemically inert proenzyme over to a functioning catalyst (as we just observed); and it demolishes attacking microorganisms in the stomach substance.
We must know that the Hydrochloric acid $\left( {HCl} \right)$ is delivered by parietal cells (otherwise called oxyntic cells) present in the stomach. The acid with sanitizing the ingested food by liberating it from microorganisms and it likewise makes acidic conditions which are needed for the working proteolytic protein i.e pepsin. The stomach lining is ensured by a mucous layer and thus $HCl$ doesn't hurt the stomach.
Therefore, the option (B) is correct.

Note:
We have to note that the deficiency of hydrochloric acid present in the stomach is known as hypochlorhydria. When there are low levels of hydrochloric acid it shows impact on the ability of the body to digest food and absorption of nutrients. The deficiency of hydrochloric acid could damage the gastrointestinal system, and number of chronic issues in health.