Glucose is a six-carbon sugar that diffuses slowly through artificial phospholipid bilayers. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm. Given this information, which transport mechanism is most probably functioning in the intestinal cells?
A) Exocytosis
B) Facilitated diffusion
C) Aquaporin transport
D) Simple diffusion
E) Osmosis

Question

Quizplus · Accepted Answer

Facilitated diffusion is the most probable mechanism for glucose transport in this scenario because it allows for the rapid movement of glucose across cell membranes through specific transport proteins, bypassing the slow diffusion through the phospholipid bilayer that would occur with simple diffusion.

Glucose Is a Six-Carbon Sugar That Diffuses Slowly Through Artificial