Fluid Mosaic Model Flashcards
Fluid Mosaic Model
accounts for the presence of lipids, proteins, and carbohydrates in a dynamic, semisolid plasma membrane that surrounds cells
The membrane is static
TRUE or FALSE
FALSE
the membrane is not static
Lipids move freely in the plane of the membrane and can assemble into
lipid rafts
_______ are specific membrane proteins that maintain the bidirectional transport of lipids between the layers of the phospholipid bilayer in cells
Flippases
what can affect how fast or slow the proteins and carbohydrates move within the membrane?
their size.
They usually move slow because they are large
The plasma membrane contains proteins embedded within the
phopholipid bilayer
Cell (plasma) membrane
semi permeable phopholipid bilayer
Carbohydrates associated with membrane - bound proteins create a
glycoprotein coat
the cell wall of plants, bacteria and fungi contain (higher/lower) levels of carbohydrates
higher
Lipid rafts
are collections of similar lipids with or without associated proteins that serve as attachment points for other biomolecules; these rafts often serve roles in signaling.