So what exactly is the basal rate of glucose uptake? Well, it's basically the rate at which these glucose molecules are continually being taken up by the cell, even when our body is at rest. Because our cells essentially always require these glucose molecules to create ATP molecules to carry out all the different types of processes. Because just because we're at rest, that doesn't mean our cells aren't actually carrying out these processes. So we find these glute one molecules essentially in all the cells of our body. But these glute one membrane proteins predominate in the membranes of red blood cells, while the glute three predominate in the membranes of neurons found in the brain.