Pore
A
pore, in general, is some form of opening, usually very small.
In
biology:
*For
skin, a pore is an opening into a
sebaceous gland that secretes
oil to lubricate and protect the surface of the skin
*In
plants, pores, or
stoma, exist in leaves in order to aid in
photosynthesis and
respiration*Other organic substances are porous, and they can be very light, such as
wood and the bones of some birds
In
Cell biology:
*Pores called
aquaporins are used to facilitate the movement of water in and out of cells by means of
osmosis*
Ion channels contain pores to allow
ions to pass through the cell's
plasma membrane into or out of the cell
In
earth sciences:
*The measure of pores in a
rock or unconsolidated material is
porosity*Pores are also referred to as
void spaces, or voids
*
Nuclear pore*
Acne*
Bacne*
Keratosis pilaris
