Answer
In the figure you can clearly see the glucose transport into pericytes has resulted in the hyperbolic curve, this indicates a protein mediated sodium-dependent process. If you see this transport protein which transports glucose to pericytes, it has binding sites for the sodium ions. The glucose transport is directly proportion to the concentration of sodium ions, as the sodium concentration increases, the glucose transport also increases, when all the sodium ions site on the transport proteins are occupied by sodium, then the glucose transport will occur at a maximum rate. If you see the transport of glucose in endothelial cell, it is a straight line occurring at a constant pace, so surely it is not sodium dependent transport as increase in sodium concentration is not showing any effect on glucose transport and it is occurring at the same pace irrespective of sodium ions presence.
Work Step by Step
In the figure you can clearly see the glucose transport into pericytes has resulted in the hyperbolic curve, this indicates a protein mediated sodium-dependent process. If you see this transport protein which transports glucose to pericytes, it has binding sites for the sodium ions. The glucose transport is directly proportion to the concentration of sodium ions, as the sodium concentration increases, the glucose transport also increases, when all the sodium ions site on the transport proteins are occupied by sodium, then the glucose transport will occur at a maximum rate. If you see the transport of glucose in endothelial cell, it is a straight line occurring at a constant pace, so surely it is not sodium dependent transport as increase in sodium concentration is not showing any effect on glucose transport and it is occurring at the same pace irrespective of sodium ions presence.