<prompt> Glucose uptake in brain is by:GLUT 1 and 3GLUT 2 and 3GLUT 3 and 4GLUT 1 and 4  <response>: Ans: A. GLUT 1 and 3For this question table given below:ReceptorLocationGLUT 1Brain, kidney, colon, placenta, erythrocytesGLUT 2Liver, pancreatic p cell, small intestine, kidneyGLUT 3Brain,kidney, placentaGLUT 4Heart and skeletal muscle, adipose tissueGLUTSSmall intestineSGLT1Small intestine and kidneySome other associated points on GLUT:Glucose enters cells by facilitated diffusion or, in the intestine and kidneys, by secondary active transport with Na.Seven different GLUTs, named GLUT 1-7, have been characterized as shown in table.They differ from sodium-glucose linked transporters SGLT-1 and SGLT-2, which are responsible for the secondary active transport of glucose in the intestine and renal tubules. 