But the pathway by which our cell absorbs these differs. So it differs from amino acids and dipeptides and tripeptides, as we'll see in just a moment. So individual amino acids are absorbed by the intercity using the sodium dependent co transport system. This is basically a secondary active transport, and we'll see exactly what we mean by that in just a moment. Basically, an ATPA pump is used to establish an electrochemical gradient for sodium. And then as the sodium moves down its electrochemical gradient, it basically brings the amino acid with it.