Cellular Respiration

[LrdGeno]

oops... that's what i ment. not oxygen, but hydrogen. because NADH carries the hydrogen atom, and another electron making the whole thing NADH and H+ right? Then it goes to the ETC where the electrons are dumped off on the proteins eventually moving down to bind with oxygen and some H+ ions that are hanging out in the cell to form water. The 2 H+ ions, that were sperated from the electrons at the start, are pushed outside making the concentration gradient of H+ on the ouside of the mitochondria (sp?) and through facillitated diffusion through the ATP synthase makes ATP by binding the ADP to a phosphate group, all using the kenetic energy of the H+ ions to rotate the ATP synthase protein, right? I hope that's right 'cause it's a mouthfull! haha

[MrMistery]

You are probably right... I can't understand you because you don't use sentences.

[LrdGeno]

gotcha... i get alittle excitied when I think I figure something out. lol okay, So first off I ment that NAD+ binds with Hydrogen not Oxygen. That makes NADH and H+. The H+ ions are shuffled outside into the cytoplasm, and the NADH (with the 2 electrons) goes to the ETC. The electrons are dumped off on the ETC proteins, and the remaining H+ gets shoved outside with the others. The electrons go down the ETC eventually binding with some spare H+ ions and an Oxygen to make water. That whole process makes a concentration gradient of H+ on the outside of the mitochondria. Then using the kenetic energy of the H+ ions, and facillitated diffusion through the ATP Synthase a phosphate group is bound to ADP to make ATP. Hopefully that's right... 'cause if it's not I'm in serous trouble!

[MrMistery]

The protons are transported between the membranes from what i know, not into the cytoplasm. When they diffuse back energy is formed by some enzymes called F0F1-ATP-ase
This takes place like this
2H+ 2e +o2--> 2H2O+ E
E + ADP + Pi--> ATP
This without going into the 3 compexes of fosforilation

[LrdGeno]

okay. I understand now, I forgot that the mitochondria had two membrane layers! so that makes sense. My instructor said they were diffused back in by a protien she called ATP synthase, and I'm assuming that has the enzyme in it.

[MrMistery]

Af, teachers... You can't live with them, you can't stab them in the back
ATP-synthetase is a general term, you can find these in the membrane of the chloroplast. The synthetase in this case is called F0F1-ATP-synthetase(generally referred to as F0F1-ATPase)
Enzymes ARE proteins(in general, with a few exceptions)

[LrdGeno]

groovy, i told my proff that I knew the name of the synthetase and she was impressed! thanx for the info. I'm just taking basic biology so i'm not expecting the teachers to go too in depth in the material

[MrMistery]

They don't need too, but the fact that enzymes are proteins is a basic cellular bio thing. By the way, the name of the enzyme-you learn it in college so your teacher might think you are reading college books now

[LrdGeno]

Haha... I am in college. But it's only a 123 lvl course so it's just the basics of how cells work and blah blah blah. Next semester I'm starting my 200 lvl courses so it's going to get more intense. I'm also starting anatomy and physiology ( it's late and I can't spell ) so hopefully i'm gonna learn alot more

[th1_rhs13]

You should relaly eloborate further rather than making a genralized blanket statement of what a Enzyme is-- the fact they have no nutrtional value and only act as catalysts for metabolic reactions should have been discussed as well.

This might help. Easy to understand language with rather funny diagrams.


http://www.chem.purdue.edu/chm333/Fall% ... e%2013.pdf

[LrdGeno]

that was all explained, however the teacher didn't get to the names because it's an entery lvl course, designed to introduce students to basic biology concepts

[MrMistery]

I hate entry level courses, they tell you poems rather than explaining the process to it's working mechanisms. Well, good luck next year with the real fun! By the way, i hate anatomy... I always get the cranial nerves mixed up