Glucose uptake by facilitated diffusion | AIIMS Based MCQ

Glucose uptake by facilitated diffusion occurs in the cells of;

A. Intestinal epithelium 
B. Kidney
C. Brain 
D. Skeletal muscle

The Answer is C. Brain  

• NOTE: In brain, the glucose uptake mostly occurs by the process of facilitated diffusion which involves carrier proteins transporting the glucose into the cells, along its concentration gradient without requiring energy for

the process. (MCQ)

• In muscle and adipose tissue, the glucose uptake is dependant on insulin. (MCQ)

• In kidney and epithelial cells of small intestine glucose uptake mainly occurs by secondary active transport (sodium-glucose cotransport). (MCQ)

• REMEMBER: In contrast to facilitated diffusion, active transport occurs against the electrical and chemical gradient and requires energy. (MCQ)