Question

Facilitated diffusion differs from simple diffusion in that

a. facilitated diffusion always requires ATP
b. simple diffusion requires a concentration gradient
c. facilitated diffusion requires an integral protein
d. simple diffusion moves substances from low to high concentration
e. simple diffusion always moves molecules that are not lipid soluble

Answer 1

c. facilitated diffusion requires an integral protein

Step-by-step explanation:

Facilitated diffusion is process of the spontaneous passive transport (high to low concentration) of molecules or the ions across biological membrane by using specific trans-membrane proteins.

Facilitated transport does not require chemical energy from the ATP hydrolysis as it is a passive transport.

On the other hand, simple diffusion is the transport of the molecule from high tot low concentration without the use of a specific molecule.

Option A, B, D and E are incorrect.