Question
In: Biology
Through what transport mechanism does glucose leave hepatocytes (in the liver) and enter the bloodstream? Through...
- Through what transport mechanism does glucose leave hepatocytes (in the liver) and enter the bloodstream? Through what transport mechanism/mechanisms does glucose leave the gastrointestinal tract and and enter the bloodstream?
Solutions
Expert Solution
Answer: Glucose enters the blood stream from liver by facilitated diffusion. In facilitated diffusion, glucose moves down Hill from a region of high concentration to a region of low concentration via carrier proteins such as glucose transporters (GLUT).
In the gut, glucose is first transported to intestinal epithelium cells from the gut by active transport. In active transport, glucose moves uphill from a region of lower concentration to a region of high concentration by using chemical energy from ATP. After uptake of glucose by intestinal cell, glucose is transported by facilitated diffusion across the Red blood cells in the blood stream.
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