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 Lipid Tail Hydrophilic: LOVES water Hydrophobic: HATES water
Phospholipid bilayer Membrane is made up of two layers of phospholipids. With this arrangement in mind, where is the “water” in the diagram? WATER Hydrophilic: LOVES water Hydrophobic: HATES 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 Location: Found in between the phospholipids in the bilayer. Function: Keeps the membrane together; the phosphate heads are not 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 Location: On the top of proteins or phospholipids Function: Help recognized similar cells to form tissues OR to recognize foreign substances in the cell
* Label Carbohydrate on the diagram
Watch me!!! Watch me!!! Shows movement of Bilayer
Cell Wall Location: Layer outside of the cell membrane in some organisms Function: Provide structure and support
Plants Cell Wall
Bacteria Cell Wall
Fungus
Phytoplankton Cell Wall