Which of the following substances is normally transported across membranes via facilitated diffusion?
A)carbon dioxide gas
B)fructose
C)bacteria
D)fat-soluble vitamins
E)transferrin

Question

Quizplus · Accepted Answer

Facilitated diffusion is a type of passive transport that moves molecules across the membrane from high to low concentration with the help of specific proteins. Fructose is a type of sugar that typically enters cells through facilitated diffusion. Carbon dioxide gas can also be transported this way, but it is not specific to facilitated diffusion. Bacteria, fat-soluble vitamins, and transferrin are not typically transported via facilitated diffusion.

Which of the Following Substances Is Normally Transported Across Membranes