More cards in this set

A group of cells all working together for a common purpose

A negative ion

Bond between a metal and non-metal

Type of covalent bonding when both electrons are from one atom

Medical use of radioactive substances

If it is hard to create new surface area a material is..

The force of electrons round a circuit

Swellings in the lymphatic system

Diffusion across cell membranes is a ....... process.

Mitochondria produce...