So this protein membrane basically moves one of the sodium ions down its electrochemical gradient from a high to a low concentration. At the same time, it also moves an H ion from the cytoplasm to our lumen. So it secretes an H and it basically absorbs the sodium as a result of the concentration gradient created by this Atpas pump. Likewise, because of this Atpas pump, this cotransport protein basically moves one sodium down its electrochemical gradient. At the same time, it brings our glucose molecule or amino acid molecule from the lumen to our cytoplasm. So we have the absorption of our we have the coabsorption of our sodium along with the glucose or our amino acids.