What role do acids and bases play in our digestion

Acids and bases have imortant role to play in our digestion.

When food is moved into the stomach hydrochloric acid reacts with it to make the food medium acidic so that enzyme pepsin can act on it.

When food is moved into intestine, the acidic food medium is converted into an alkali (base) so that enzymes from pancreas and liver can act on it.