Facilitated diffusion:
a) requires passage of substances through an ion channel
b) allows substances to diffuse through a membrane by binding to a facilitative transporter
c) allows substances to diffuse through a membrane by binding to a facilitative transporter and requires passage of substances through an ion channel
d) requires coupling to an energy-releasing system
b) allows substances to diffuse through a membrane
Answer: b) allows substances to diffuse through a membrane by binding to a facilitative transporter
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