-
CycleTrack and SDN are teaming up to make medical school admissions more transparent and accessible! Read the announcement to learn how we’re supporting the future of CycleTrack’s free application-tracking tools .
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
oxidative phosphorylation
Started by elz787
Get help with your application
Use all the free resources available to you from SDN: articles, guides, expert advising, forums discussions, and school research.
I think that is way more in depth than you need to know...however, if I remember from my biochem class correctly, cyanide is an inhibitor of one of the complexes in the electron transport chain (I believe it's Complex IV). Therefore, cyanide would inhibit oxidative phosphorylation.
elz787 said:does anyone know why cyanide interrupts this process?
interferes with hemoglobin+4O2....
no O2 -> no oxid. phos.
It blocks an enzyme called cytochrome a-a3 complex (also called cytochrome oxidase) and has a very great affinity for oxidized iron (Fe3+). It inhibits the final step of oxidative phosphorylation bringing aerobic metabolism to a screeching halt. Basically the patient suffocates at a cellular level from lack of O2, because of the need for cytochrome oxidase in the tricarboxylic acid cycle for production of ATP.
Some researchers believe that there are other enzymes (metalloenzymes being the one I recall of the top of my head) that are as sensitive or more sensitive to cyanide causing a much more complex biochemical slide into death than what I described above, but for intents and purposes what I described above is more than what you need to know.
Some researchers believe that there are other enzymes (metalloenzymes being the one I recall of the top of my head) that are as sensitive or more sensitive to cyanide causing a much more complex biochemical slide into death than what I described above, but for intents and purposes what I described above is more than what you need to know.