Question

Which are substances that are moved into cells by facilitated diffusion?

A) fat-soluble molecules
B) viruses and bacteria
C) oxygen and carbon dioxide
D) ions such as K+

Answer 1

The correct answer is Option D) ions such as K+.

Explanation:

Potassium ions (K+), Sodium ion (Na+) and monosaccharide such as glucose are substances that are moved into cells by facilitated diffusion.

Faciliated diffusion is a type of passive transport in which molecules moves from outside into the cell through cell membrane with the help of specific protein. This transport does not require energy for the transportation of molecules.