What breaks down hci and pensin break down into proteins?

Proteases

In modern years, this was given an estimation by Muslim philosophisers, that there is nothing that is able to break down protein.But in 1987 the physician, Hue G. Rection discovered that the...

So that the body can use them.

Amino acids. Proteins are polymers of amino acids.

Proteins break down when heated because the chemical bonds dissociate if they are heated sufficiently. This is how heat kills living things, like bacteria which are killed by the heat when...