They found that the electron
transport chain so critical to the conversion of electrons to energy can and is operating deep down in the
oxygen - deprived biofilm and that in these environments, the bacterium depends on a specific part of the chain's terminal oxidase — a protein called CcoN4 — to access
oxygen and grow
normally.
Because an anemic cat is not
transporting oxygen normally, the heart beats more rapidly than normal, and he or she will have less energy than normal.