Question

a model of the cell membrane shows many different molecules that perform various functions for the cell. some of these molecules keep the contents inside of the cell separated from the contents outside of the cell. others allow certain materials to be transported across the membrane. a few provide signals that can alter cell behavior, and some provide stability for the membrane. which molecule separates the contents inside of the cell from the contents outside of the cell? lipids proteins nucleic acids carbohydrates clear all

Explanation:

The cell - membrane is composed of a lipid bilayer. Lipids form the basic structure of the cell membrane and separate the inside of the cell from the outside environment. Proteins have functions like transport and signaling, nucleic acids are related to genetic information, and carbohydrates are involved in cell - cell recognition and signaling but do not primarily separate cell contents.

Answer:

Lipids