Cell Membrane Structure and Composition

Cholesterol

Lipids (correct)

Proteins

Carbohydrates

A lipid bilayer (correct)

Rigid barriers

Single layer structures

Channels for ions and molecules to pass through

Aids in the transport of molecules across the membrane

Helps to stiffen the cell membranes

Facilitates communication with external environment

Prevents phospholipids from being too closely packed together (correct)

<p>Help cells communicate with their external environment</p> Signup and view all the answers

<p>Because they have hydrophilic and hydrophobic parts</p> Signup and view all the answers

<p>Give the cell support and shape</p> Signup and view all the answers