دانلود رایگان پاورپوینت غشای پلاسمایی

Plasma Membrane
Chemical Composition
Chemical Composition
Lipid Fraction of Plasma membrane
Plasma Membrane
Protein Fraction of Plasma membrane
Plasma Membrane
Enzymes
Structure of Plasma membrane
Structure of Plasma membrane
James Daniell and Hugh Davson
The Unit membrane Hypothesis
Fluid Mosaic Model
S.J. Singer and G.L.Nicolson

Structure of Plasma membrane

Danielli and Davson proposed that the Plasma membrane consists of two layers of lipid (Phospholipid) molecules – a bimolecular leaflet- formed in such a way that the polar or hydrophilic part of the lipid molecules are in contact with the surrounding aqueous phase, where as the hydrophobic or non-polar hydrocarbon portions are associated in the central region of the leaflet. The entire structure would consist of a double layer of lipid molecules sandwiched between two essentially continuous layers of protein.