Unit 2 - class 2 Flashcards
Chapter 4.2
What is the plasma membrane
A phospholipid bilayer with associated proteins
What is the defining structure of a cell?
The plasma membrane
What is a plasma membrane’s function?
regulates the flow of material into and out of the cell
Why must a cell be small
to have a large surface to volume ratio, so there is enough plasma membrane to exchange all the material that must enter and exit the cell
Label the plasma membrane
Class 2 study guide
Structure of the Plasma membrane is…
a phospholipid bilayer with embedded proteins
The Function of a plasma membrane is…
to regulate the flow of material in and out of the cell
What can move across the plasma membrane
CO2 and O2 because they are non polar
What crosses the membrane through channel proteins and pumps
Ions and Polar molecules
What separates a living cell from its boundaries
Plasma Membrane
Know how to draw and label a phospholipid
class 2 study guide
