Over the years, the safety of many food additives, from food dyes to trans fats, has come into question. A scare over a food additive may linger in our minds long after researchers find that there's actually no cause for alarm.
In cell biology, a mitochondrion (plural mitochondria) is an organelle found in most eukaryotic cells. Mitochondria are sometimes described as cellular power plants, because their primary function is to convert organic materials into energy. Note: The above text is excerpted from the Wikipedia article Mitochondrion, which has been released under the GNU Free Documentation License.
Mitochondria are distributed ubiquitously throughout the cytoplasm of the entire nerve cell and are especially plentiful at presynaptic specializations. Neurofilaments are a type of intermediate filament found in nerve cells. Neurofilaments are involved in the maintenance of the neuron's shape and mechanical strength.