2 Electron micrograph of red blood cell plasma membrane
Electron micrograph of red blood cell plasma membrane
Confocal image of ERD-GFP (an ER marker)
Confocal image of ERD-GFP (an ER marker)
Common feagures of biological membrane Membranes are sheet-like structures, only two molecules thick, that form closed boundaries between different compartments the thickness of most membranes is between 6 nm and 10 nm 2. Membrane consist mainly of lipids and proteins. Their mass ratio ranges from 1: 4 to 4: 1. Membranes also contain carbohydrates that are linked to lipids and proteins 3. Membrane lipids have both hydrophilic and hydrophobic moieties. These lipid bilayers are barriers to the flow of polar molecules 4. Specific proteins mediate distinctive functions of membrane
Common feagures of biological membrane 1. Membranes are sheet-like structures, only two molecules thick, that form closed boundaries between different compartments. The thickness of most membranes is between 6 nm and 10 nm. 2. Membrane consist mainly of lipids and proteins. Their mass ratio ranges from 1:4 to 4:1. Membranes also contain carbohydrates that are linked to lipids and proteins. 3. Membrane lipids have both hydrophilic and hydrophobic moieties. These lipid bilayers are barriers to the flow of polar molecules. 4. Specific proteins mediate distinctive functions of membrane
Common feagures of biological membrane 5. Membranes are noncovalent assemblies. The constituent proteins and lipid molecules are held together by many noncovalent interactions 6. Membranes are asymmetric the two faces of biological membranes always differ from each other 7. Membranes are fluid structures. Lipid and protein molecules diffuse rapidly, unless they are anchored by specific interactions. Membranes can be regarded as two-dementional solutions of oriented proteins and lipids 8. Most cell membranes are electrically polarized Membrane potential plays a key role in transport, energy conversion, and excitability
5. Membranes are noncovalent assemblies. The constituent proteins and lipid molecules are held together by many noncovalent interactions. 6. Membranes are asymmetric. The two faces of biological membranes always differ from each other. 7. Membranes are fluid structures. Lipid and protein molecules diffuse rapidly, unless they are anchored by specific interactions. Membranes can be regarded as two-dementional solutions of oriented proteins and lipids. 8. Most cell membranes are electrically polarized. Membrane potential plays a key role in transport, energy conversion, and excitability. Common feagures of biological membrane
Fatty Acids are key conponents of lipids Fatty acid Head group Structure of biomembrane
Fatty Acids are key conponents of lipids Head group Structure of biomembrane Fatty acid