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Take a look at our online gallery featuring genuine photos and videos of real singles seeking dates.- Let's delve into the world of mitochondria which are probably my favorite organelle.But that's not the only membrane involved in a mitochondrion. So you want this extra surface area so you can essentially have more of that going on. So if you're talking about one of them, if you're talking about one of these folds, you're talking about a crista, but if you're talking about more than one of them, you would call that a cristae, cristae.Sometimes I've seen the pronunciation of this as cristae, cristae or cristae, that's plural for crista.
Again, please keep their identity a secret Click on the "Continue" button search with your zip/postal code.And one of the proteins that you have in the outer membrane of mitochondria, they're called porins and porins aren't found only in mitochondria, but they're kind of tunnel proteins, they're structured so they kind of form a hole in the outer membrane. These are porins and what's interesting about porins is they don't allow large molecules to pass through passively, but small molecules like sugars or ions can pass passively through the porins.And so, because of that, your ion concentration and well, I should actually say, your small molecule concentrations tend to be similar on either side of this membrane, on either side of this outer membrane. We also have a inner membrane and I'm gonna draw it with a textbook model first and then we'll talk a little bit about, since we think this model is not quite right, but in this, so we have this inner membrane, inner membrane, and this inner membrane has these folds in it to increase their surface area and the surface area is really important for the inner membrane because that's where the processes of the electron transport chain occur across, essentially, these membranes.So all the DNA that's inside of you, the bulk of it, yes, it is in your nuclear DNA, but you still have a little bit of DNA in your mitochondria and what's interesting is your mitochondrial DNA, your mitochondria, are inherited, essentially, from your mother's side, because when a egg is fertilized, a human egg has tons of mitochondria in it and I'm obviously not drawing all of the things in the human egg. The sperm has some mitochondria in it, you could imagine it needs to be able to win that very competitive fight to get to fertilize the egg, but the current theory is all or most of that gets digested or dissolved once it actually gets into the egg.And anyway, the egg itself has way more mitochondria, so the DNA in your mitochondria is from your mother or is essentially from your mother's side and that's actually used, mitochondrial DNA, when people talk about kind of an ancient Eve or tracing back to having kind of one common mother, people are looking at the mitochondrial DNA, so it is actually quite, quite fascinating.