*Protects the cell and regulates what comes in and out

*Cell Membrane

*Which word means that only some items are able to enter/exit a cell?

*SEMI PERMEABLE

*What are the macromolecules within the membrane that help transfer large molecules

*PROTEIN

*The cell below after water moves will become _________?

*Hypotonic

*The macromolecule that makes up the majority of the membrane.

*Phospholipids

*Cells transport materials through the membrane in order to reach

_______________.

*Equilibrium

*Same – State

The reason cells move to reach equilibrium.

*Homeostasis

*Requires the use of energy to pass through the cell

*Active Transport

*Movement of WATER from High to Low concentrations.

*OSMOSIS

*Large particles are surrounded by the membrane and moved OUT.

*EXOCYTOSIS

*The phosphate heads are _____________

*Hydrophillic

*Which transports requires energy to bring IN large molecules?

*ENDOCYTOSIS

*What tonicity would your cells be if you were dehydrated?

*Hypertonic

*The fatty acid tails are ________?

*Hydrophobic

*Diffusion and Osmosis are examples of this transport?

*Passive Transport

*The picture show what kind of transport ( specific )

*Diffusion

*If a human drinks salt water their cells become…?

*Hypertonic

*What is the movement of materials from a high to low concentration called?

*DIFFUSION

*Water moves through which process?

*OSMOSIS

*Molecules become balanced at which state?

*EQUILIBRIUM

*Which type of diffusion involves large molecule exiting through large protein channels?

*FACILITATED

*What is the movement of materials from a low to high concentration called?

*ACTIVE TRANSPORT

*Which active transport has cells swallowing large solid particles?

*ENDOCYTOSIS

*Which active transport has cells expelling particles through the plasma membrane?

*EXOCYTOSIS

*What happens to cells placed in pure water?

*SWELL

*What happens to cells placed in salt water?

*SHRINK