BIOB10H3 Chapter Notes - Chapter 5: Acetyl-Coa, Acetyl Group, Group 11 Element
Document Summary
Organisms that captured and utilized energy by the means oxygen independent metabolism. In eukaryotes, the utilization of oxygen as a means ofenergy extraction takes place in a specialized organelle, the mitochondrion. Mitochondria are large enough to be seen in the light microscope and their presence within cells has been known for over a hundred years. At one end of the spectrum, mitochondria can appear as individual, bean-shaped organelles (figure 5. 1b), ranging from 1 to 4 _m in length. At the other end of the spectrum, mitochondria can appear as a highly branched, interconnected tubular network. Mitochondria can fuse with one another, or split in two. Mitochondria occupy 15 to 20 percent of the volume of an average mammalian liver cell and contain more than a thousand different proteins. These organelles are best known for their role in generating the atp that is used to run most of the cell"s energy-requiring activities.
