Question

Why is facilitated diffusion necessary?
Question 2 options:

A)

To break up large insoluble molecules

B)

To transport gasses between vessels

C)

To move liquids from one capsule to another

D)

To pass large insoluble molecules

Answer 1

Facilitated diffusion is a process that helps transport substances across cell membranes with the assistance of specific proteins. The correct answer to why facilitated diffusion is necessary among the options given is:

**D) To pass large insoluble molecules.**

This is because facilitated diffusion allows larger or polar molecules that cannot easily pass through the lipid bilayer of the cell membrane to move across it with the help of specific channel or carrier proteins.