The proteins may assist in the movement of substances by facilitated diffusion or active transport.
The property of the phospholipid bilayer that allows proteins to move laterally in the membrane would be the ability to behave as a two-dimensional fluid where the molecules can freely move laterally. It is an important property and is affected by composition and temperature largely.
Metals conduct electricity and heat, indicating that the electrons are free to move. Metals are malleable, showing that atoms are not in fixed positions but can remain bonded even though they change their positions. In metallic bonding, atoms donate electrons to a pool and all the atoms share in the pool. No compounds are formed, but the atoms are bonded into a network.
It occurs at the metaphase of the cell division cycle.
