HEMOLYSIS

cell membrane

is the outermost part of the cell, which encloses and supports all its

components.

cell membrane

It forms the outer boundary for which substances of the extracellular fluids are

separated from those materials within the cytoplasm.

selective permeable barrier

Cell membranes act as a

selective permeable barrier

a functional feature that defines

why it can precisely permit the free passage of some substances and restrict other materials

that enter and leave the cell

passive transport mechanisms

The movement of molecules across cell membranes is carried out

through ______, such as diffusion, osmosis, filtration, and facilitated

transport, and through active and bulk transport mechanisms.

Red blood cells or erythrocytes

are normally spherical biconcave discs with a smooth

plasma membrane

salts

This outer membrane does not allow _____ in the red blood cell cytoplasm to

get out of the cell

water

but it does allow ____ to freely enter or leave the cell through its plasma

membrane or cell membrane

osmotic equilibrium

The movement of water molecules is based on the principle that red cells or

erythrocytes are in ______ with the plasma of the blood

water will diffuse into the cell and

will increase cellular volume

If the osmolality of the

new fluid environment is less than that of the red blood cell

water will pass from the cell into the surrounding fluid to

reduce cellular volume and cause cellular shrinkage

if the osmolality of the new environment is

greater than that within the cell