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Can you elaborate on the part that seems unintuitive? Eukaryotic cells have multiple copies of their mitochondria, not one. When the cell divides, the mitochon
by LordKeren 3y ago
Can you elaborate on the part that seems unintuitive?
Eukaryotic cells have multiple copies of their mitochondria, not one. When the cell divides, the mitochondria (roughly) split between the two daughter cells then carry on
- Karawebnetwork 3y ago> Can you elaborate on the part that seems unintuitive? For me, the intuitive part is how mitochondria can be created by the body if it's an external structure that's been found. If I take a coin and put it in my pocket, my children don't have any coins at birth. They have to find one themselves. Why is it different for mitochondria?
- myfavoritetings 3y agoMitochondria are self replicating. When the cell splits some of the mitochondria are present in each new cell.
- gadders 3y agoYeah, this was how I was thinking as well. But to continue the analogy, it's more like you split yourself into two smaller "you"s, and in the process each new "you" gets half a coin in the pocket of each new "you".
- randomname93857 3y agoFrom what I've read, Each cell contains from dozens to a hundred+ mitochondrias. When cell splits then some mitos go to one child and some to another.
- LordKeren 3y agoThat’s because creation of new coins is external to your reproduction. Eukaryotic cells are not scavenging in the wild for new mitochondria; they control the replication of mitochondria within them, including how they are passed to offspring through reproduction An interesting thing about mitochondria too— we receive all of our mitochondria from our mother. So for every human, there is an unbroken line of direct mitochondrial ancestors leading all the way back to the first biologically unique Homo Sapian women
- gadders 3y agoFrom what you have said, I think my mental model for how life forms at the mammal-size level is wrong. The piece I was missing is that even for large organisms, new life is created by cells (eggs) already containing mitochondria dividing. New cells aren't created from scratch.
- dboreham 3y agoNot parent, but there's something missing that leads to the organism becoming stable between generations. Do the mitochondria independently reproduce and it just happens that you end up with neither too many nor too few of them, generation to generation?
- anonymouskimmer 3y agohttps://en.wikipedia.org/wiki/Human_mitochondrial_genetics#Replication,_repair,_transcription,_and_translation https://en.wikipedia.org/wiki/Human_mitochondrial_genetics#R... : Mitochondrial replication is controlled by nuclear genes and is specifically suited to make as many mitochondria as that particular cell needs at the time. : Each human cell contains approximately 100 mitochondria : The amount of mitochondria per cell also varies by cell type : Egg cell: Mature metaphase II egg cells can contain 100,000 mitochondria (so when it comes to passing down mitochondria to descendants, eukaryotes don't fool around)
- LordKeren 3y agoEukaryotic cells control the replication of mitochondria through signaling pathways