<prompt> Insulin acts through which channeltransporter-GLUT-1GLUT-4SGLT-1SGLT-2  <response>: Ans. is b i.e., GLUT-4 Glucose is transported into the cells by two mechanismsi Facilitated diffusion By glucose transporters GLUTii Secondary active transportBy sodium dependent glucose transporter SGLT Insulin increases glucose uptake by increasing the GLUT4 on the cell membrane. Thus, insulin promotes facilitated diffusion i.e. diffusion along concentration gradient not against concentration gradient. So, option b is incorrect. 