Large molecules,such as glucose and vitamins,reach the brain through:

Question

Quizplus · Accepted Answer

Large molecules like glucose and vitamins cannot passively diffuse across the cell membrane or through ion channels. Transcytosis involves the transport of molecules by endocytosis on one side of the cell and exocytosis on the other, it is more common in epithelial cells involved in the transport of fluids and electrolytes, but not in the brain. Therefore, special transport systems are needed for large molecules to enter the brain.

Large Molecules,such as Glucose and Vitamins,reach the Brain Through