Membrane Structure and Function Quiz

Separating internal cytoplasm from the external environment of the cell

Controlling the movement of molecules into and out of the cell (correct)

Regulating cell size

Providing structural support to the cell

Nonpolar, hydrophobic, fatty-acid tails sandwiched in between (correct)

Cholesterol molecules forming a rigid structure

Polar, hydrophilic, phosphate heads on the outer surface

Proteins embedded in a matrix of carbohydrates

Attached to the external surface of the membrane

On the inner membrane surface

Embedded within the hydrophobic interior of the lipid bilayer (correct)

Floating freely in the cytoplasm

<p>Participate in cell signaling and recognition</p> Signup and view all the answers

<p>Facilitate the movement of large or charged molecules across the membrane</p> Signup and view all the answers