Question

Protein molecules embedded in the structure illustrated below are often utilized during facilitated diffusion. This process is an example of which of the following cellular processes?

Answer 1

The process described, where protein molecules embedded in a structure facilitate the passive movement of substances, is an example of facilitated diffusion, a form of passive transport across cell membranes.

Step-by-step explanation:

The description mentions a structure where protein molecules are embedded, a characteristic feature of cell membranes. The process being referred to, facilitated diffusion, involves the passive movement of molecules across a membrane with the assistance of specific transport proteins.

These proteins facilitate the movement of substances down their concentration gradient, from an area of higher concentration to an area of lower concentration.

Facilitated diffusion is a form of passive transport, as it does not require energy input from the cell. This process is crucial for the transport of various substances, such as ions or larger polar molecules, across cell membranes. It contrasts with active transport, as it relies on the inherent kinetic energy of particles for their movement.