Transcript Plasma Membrane and Cell Wall

Wake-up
1. How can you tell the difference between an
onion cell and a Elodea cell?
1. Why was the Human cheek cell round and
not square?
-Turn in Wake-up and Animal/Plant Cell Lab
from Friday
Plasma Membrane and Cell Wall
Christopherson
Fill in the chart at the top of
your notes. Use your notes if
necessary.
Membrane: Prokaryotic Cell
Membrane: Eukaryotic Cell
Phospholipid: Structure
Phosphate Head
Hydrophilic: LOVES water
Lipid Tail
Hydrophobic: HATES water
Phospholipid bilayer
With this arrangement in mind, where is
Membrane
is
made
up
of
two
layers
of
the “water” in the diagram?
phospholipids.
WATER
Hydrophilic: LOVES water
Hydrophobic: HATES water
Hydrophilic: LOVES water
WATER
Location: Surrounds the
cell and organelles
Function of Phospholipids
Controls what comes in and out of cells;
the gatekeeper
Label Phospholipids on the diagram
Cholesterol
Function:
Keeps
the
Location:
membrane
Found in
together;
the
between the
phosphate
phospholipids
heads
are not
in the bilayer.
attached to each
other
Label Cholesterol on the diagram
Proteins
Location: Within the phospholipid bilayer
1. Transport Proteins
Helps larger substances pass through the
bilayer
2. Glycoprotein: Protein with a carbohydrate
Helps cells recognize similar cells; similar
cells form tissue
Label Transport protein and Glycoprotein
Carbohydrate
Function: Help recognized similar cells to
Location:
On
the
top
of
proteins
or
form tissues OR to recognize foreign
phospholipids
substances in the cell
* Label Carbohydrate on the diagram
Watch me!!!
Shows movement of Bilayer
Cell Wall
Location: Layer outside of the cell
Function: Provide structure and support
membrane in some organisms
Plants
Cell Wall
Bacteria
Cell Wall
Fungus
Cell Wall
Phytoplankton
Cell Wall