The cell membrane

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Transcript of The cell membrane

Page 1: The cell membrane

THE CELL MEMBRANEEverything You Ought To Know

(aka The Plasma Membrane)

Page 2: The cell membrane

Fluid Mosaic• Not a solid structure• Dynamic• Moveable• Adaptable• Proteins

Video

Page 3: The cell membrane

The Basic Cell Membrane

Page 4: The cell membrane

Phospholipid Bilayer• Phospholipids

• Head – Hydrophilic• Tail – Hydrophobic• Tails Together and Heads Outward

• What does it allow through without energy?• Water, Oxygen, and Carbon Dioxide

• Diffusion• High to Low

Page 5: The cell membrane

Transmembrane Proteins & Selective Permeability

• Large and/or charged particles• Glucose• Sodium ions (charged)

• Gates and channels• Electrical charges

Page 6: The cell membrane

Many Membranes • Mitochondrial membranes• Golgi Apparatus• Nuclear Membrane• Lysosome• Endoplasmic Reticulum