Parts Of The Plasma Membrane And Their Function

Front 1

Lipid Molecules (Phospholipids)

Back 1

F - Provide the medium in which protein molecules float; form the basic fabric of the membrane; are relatively impermeable to most water - soluble molecules.

D - form two fat layers that create the bulk of the Plasma membrane.

Front 2

Cholesterol Molecules

Back 2

F - have a stabilizing effect and help keep the membrane fluid.

D - Scattered throughout the fat layer.

Front 3

Protein Molecules

Back 3

F - Responsible for most of the functions of the membrane, acts as enzymes; serves as receptors or binding sites for hormones or other chemical messengers; acts as carriers that bind to substances and move through cell membrane; form pores through which water and small molecules can move.

D - Scatter throughout the bilipid (fat) layer.

Front 4

Carbohydrate Molecules

Back 4

F - Add an identification tag to mark protein molecules; makes the cell membrane a fuzzy, sticky sugar - rich area.

D - Found attached to proteins that are scattered throughout the bilpid (fat) layers.

Front 5

Glycoprotein Molecules

Back 5

F - Determined blood type; acts as receptors that certain bacteria, viruses or their toxins can bind to; play a role in cell to cell interactions.

D - Sugar Proteins that abut the extra - cellular space.