<unk>  (or oxidative<unk>  is the rapid release of the reactive oxygen species (ROS), superoxide anion () and hydrogen peroxide (), from different cell types. This is usually utilised for mammalian immunological defence, but also plays a role in cell signalling.<unk>  is also implicated in the ovum of animals following fertilization. It may also occur in plant cells.
Respiratory burst
Respiratory adaptation
Immune response
Antigen presentation
Gas exchange
Oocyte selection
Cytostasis
Drug metabolism