Question

Which of the following criteria does not pertain to facilitated transport?

• A. Transport saturation
• B. Uphill transport
• C. Requirement of special membrane proteins
• D. High selectivity

Answer 1

The correct option is B Uphill transport

Facilitated diffusion, also known as facilitated transport or passive-mediated transport is the process of spontaneous passive transport of molecules or ions across a biological membrane via specific transmembrane integral proteins. The transport of solutes takes place from the region of higher concentration to the region of lower concentration. Uphill transport is the transport of substances from the region of lower concentration to the region of higher concentration against the concentration gradient.