Destroyer Bio Q 64

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dentista123

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My question is, where does the electron transport chain take place in a red blood cell if they don't have a mitochondria?
 
I must have missed that..
So this means that RBC's just undergo glycolysis and not electron transport chain. But prokaryotes don't have a mitochondria and do have an electron transport chain. Is this correct? Thanks.
 
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RBCs do not have an electron transport chain, because electron transport chain is involved in aerobic respiration, which is an oxygen dependent process (O2 is the final electron acceptor; it accepts electrons and it combines with protons to produce H2O. In other words, the electron transport chain "CONSUMES" oxygen). Now, remember that RBCs' main task is to transport oxygen throughout the body. If they had the electron transport chain going on, the would have consumed this oxygen to great extent, and by the time they arrived at the tissue, they would have had very little oxygen left for delivery.
 
And why aren't they, pray tell. They are definitely cells, just a specialized cell.

Also, RBCs only do glycolysis, you do the electron transport chain in the cristae of mitochondria. I dont remember much from histo but I remember this much at least. 😀

RBC and their "cell-ness" is mere semantics. From my cell bio class literally all i can remember was my professor when he would make a generalization about cells he would ALWAYS SAY "all BUT???(asking the class) RBC". what a shame....thats all i remember from that class lol. 😀
 
RBC and their "cell-ness" is mere semantics. From my cell bio class literally all i can remember was my professor when he would make a generalization about cells he would ALWAYS SAY "all BUT???(asking the class) RBC". what a shame....thats all i remember from that class lol. 😀


Believe what you will but it is NOT semantics. They are cells and are born with organelles like every other cell. More commonly known as a ghost cell upon maturity...at least from my vertebrate anatomy prof.

Whats with all that hoopla about ETC? Of course they dont have an electron transport chain; it comes with the territory of not having mitochondria.

Anyway, I think we are making a mound out of an ant hill here. The key concept is that the electron transport chain doesnt occur in a RBC b/c they got rid of their organelles upon maturity and turning into a ghost cell. It is called a ghost cell b/c they lost all their organelles and in effect is just a zombie whose job is to transport oxygen and then they die.

But they are still a cell dabnabit....if anything we should be amazed on how they can be such a specialized cell.
 
Believe what you will but it is NOT semantics. They are cells and are born with organelles like every other cell. More commonly known as a ghost cell upon maturity...at least from my vertebrate anatomy prof.

Whats with all that hoopla about ETC? Of course they dont have an electron transport chain; it comes with the territory of not having mitochondria.


Anyway, I think we are making a mound out of an ant hill here. The key concept is that the electron transport chain doesnt occur in a RBC b/c they got rid of their organelles upon maturity and turning into a ghost cell. It is called a ghost cell b/c they lost all their organelles and in effect is just a zombie whose job is to transport oxygen and then they die.

But they are still a cell dabnabit....if anything we should be amazed on how they can be such a specialized cell.

Just because you don't have a mitochondria does not mean you do not have an Electron Transport Chain. What about prokaryotes?