What in the human stomach increases the activity of enzymes and has bactericidal properties?

One of the main components of gastric juice is hydrochloric acid, which is secreted by the parietal cells of the glands of the gastric mucosa. Hydrochloric acid has a bactericidal effect (destroys microorganisms entering with food), creates an optimal level of acidity in the stomach, which is necessary for the conversion of pepsinogen into pepsin. Pepsin is an enzyme that breaks down the peptide bonds of proteins to form simpler substances (peptides and free amino acids) for better assimilation by the body.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.