Biology Ch 5 And Ch 10

Front 1

In this model many membranes can move freely although some are anchored in place

Back 1

Fluid Mosaic Model

Front 2

What are the two major components of the cellular membrane

Back 2

1. Phosphilipds
2. Proteins

Front 3

This is amphipathic, most abundant part of the plasma membrane and for lipid bilayers

Back 3

Phospholipids

Front 4

Are amphipathic, 2nd most abundant part of plasma protein and have an intergral and peripheral

Back 4

Proeteins

Front 5

Some substances can cross the membrane while some cannot, the cell controls what enters and leaves it.

Back 5

selective permeability

Front 6

Individual molecules remain in close association yet have the ability to move within the membrane

Back 6

Fluidity

Front 7

Most lipids can rotate freely around their long axes and move laterally within the membrane

Back 7

semifluid

Front 8

transverse movement of lipids from one leaflet to the opposite and does not occur spontaneously, requires ATP

Back 8

flip- flop

Front 9

name 3 factors affecting membrane fluidity

Back 9

1. Length of phospholipid fatty acyl tail
2. presence of Double bonds in unsaturated phospholipid acyl tail
3. presence of cholestrol