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Mitochondria are organelles surrounded by membranes, distributed in the cytosol of most eukaryotic cells. Its main function is the conversion of potential energy of pyruvate molecules into ATP. Português: o diagrama mostra uma secção de uma mitocôndria de célula eucariótica.
Simplified cross-section of a mitochondrion and a submitochondrial particle, showing the particle's inverted membrane orientation. Whereas whole submitochondrial particles can perform oxidative phosphorylation yielding ATP, destabilized particles lacking F 1 particles consume oxygen and oxidize NADH without synthesizing ATP, and free F 1 particles catalyze the hydrolysis of ATP into ADP.
the diagram i made myself using adobe illustrator. as a source for the information i used the diagrams found here:, , , , , and . Author: Mariana Ruiz Villarreal LadyofHats: Permission (Reusing this file)
Mitochondria are commonly between 0.75 and 3 μm 2 in cross section, [11] but vary considerably in size and structure. Unless specifically stained , they are not visible. In addition to supplying cellular energy, mitochondria are involved in other tasks, such as signaling , cellular differentiation , and cell death , as well as maintaining ...
In S. cerevisiae mitochondria, phosphatidylcholine makes up 38.4% of the IMM, phosphatidylethanolamine makes up 24.0%, phosphatidylinositol 16.2%, cardiolipin 16.1%, phosphatidylserine 3.8%, and phosphatidic acid 1.5%. [6] In the inner mitochondrial membrane, the protein-to-lipid ratio is 80:20, in contrast to the outer membrane, which is 50:50 ...
The amount of mitochondria per cell also varies by cell type, with some examples being: Erythrocytes: 0 mitochondria per cell. [1] Lymphocytes: 3 mitochondria per cell. [7] Egg cell: Mature metaphase II egg cells can contain 100,000 mitochondria, and 50,000–1,500,000 copies of the mitochondrial genome (corresponding to up to 90% of the egg ...
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The mitochondrial shuttles are biochemical transport systems used to transport reducing agents across the inner mitochondrial membrane. NADH as well as NAD+ cannot cross the membrane, but it can reduce another molecule like FAD and [QH 2] that can cross the membrane, so that its electrons can reach the electron transport chain.