Cell Membrane

1. Function

1.1. Semi Permability

1.1.1. Non-polar Molecules

1.1.1.1. Pass through membrane

1.1.2. Ions

1.1.2.1. Transport Proteins

1.1.3. Polar Molecules

1.1.3.1. Transport Proteins

2. Transport

2.1. Concentration Gradient

2.1.1. High to Low

2.1.1.1. Passive

2.1.1.1.1. No Energy Used

2.1.2. Low to High

2.1.2.1. Active

2.1.2.1.1. ATP used

2.2. Tonicity

2.2.1. Hypertonic

2.2.1.1. More solute; less solvent

2.2.2. Hypotonic

2.2.2.1. Less solute; more water

2.2.3. Isotonic

2.2.3.1. Equal concentrations

2.3. Endocytosis

2.3.1. Phagocytosis

2.3.1.1. "Cell-eating"

2.3.2. Pinocytosis

2.3.2.1. "cell-drinking"

2.4. Exocytosis

2.4.1. Waste and products leave cell

3. Structure

3.1. Fluid Mosaic Model

3.1.1. Cholesterol

3.1.2. Phospholipids

3.1.2.1. Polar Head

3.1.2.1.1. Hydrophillic

3.1.2.2. Non-polar Tails

3.1.2.2.1. Hydrophobic

3.1.3. Glycoproteins

3.1.4. Glycolipids