Archive for the Mitochondria-Related category

Mitochondria

By Mary Anne Winslow

In the following article, I am going to give you explanation and description of mitochondria, followed by giving the concise narration of how mitochondrion first was tracked. After that I will explain the formation of the mitochondria and how it is connected to its function.

The definition of mitochondria is to convert the chemical energy of fuel molecules stored in the bonds of carbohydrates, into a form that the cell can use, for essential biochemical conversions of amino acids and fatty acids, and the energy rich molecule called ATP (adenosine triphosphate). Present day mitochondria probably evolved as a consequence of early end symbiosis. The idea of the endosymbiosis theory was first originated by the early 20th century Russian Biologist. Symbiosis is the close relationship between organisms of different species that live together. Mitochondria evolved by a symbiosis, where one species of prokaryote was engulfed by and lived inside another species of prokaryote. The engulfed prokaryotes provided hosts with certain advantages associated with their specific metabolic abilities. Mitochondria are thought to have originated as bacteria capable of carrying out oxidative metabolism.

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Transcription Factor Protein’s Role In Cell Death, Neurodegeneration And Schizophrenia

Researchers at the University of Pennsylvania School of Medicine discovered that a protein called Elk-1 interacts with mitochondria, the energy storehouse of a cell, suggesting that this protein - typically active in the nucleus — could play a role in cell death and mitochondria-related diseases such as neurodegeneration and schizophrenia.

The neuron is a particular type of cell in the brain that is responsible for, among other tasks, learning and memory, cognitive function, and other higher order physiologies. The neuronal cell exhibits a complex structure where fine hair-like structures called dendrites receive signals from other neurons. These signals are transferred to the soma, or body, of the cell and result in neuronal responsiveness to stimulation.

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