There are a few things you need to know in order to understand HIV infection.
Enzymes are like the workers of a cell.
They build new proteins, transport materials around the cell, and carry out other important cellular functions. RNA is like the construction boss. Cells use RNA to tell enzymes how to build a specific part of a cell. This RNA is then used by other enzymes to build a new protein or enzyme. The building blocks that are used to make living things.