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Mitochondria Are Alive

asimov.press

21–30 of 412 posts

Re: Mitochondria Are Alive

#21

I don’t understand the headline (yes I skimmed the article). Why would mitochondria not be alive? What does that even mean?

I am terrible at biology but I will try. The idea is that mitochondria is not a component of a living organism, but an organism that once lived independently of the cell.

Re: Mitochondria Are Alive

#22

I don’t understand the headline (yes I skimmed the article). Why would mitochondria not be alive? What does that even mean?

"If we think of mitochondria as non-living organelles..."

mitochondria were thought to just be a component of the cell. But they have their own DNA separate from that in the cell's nucleus. They replicate on their own like bacteria.

Re: Mitochondria Are Alive

#25
post #20

I don’t understand the headline (yes I skimmed the article). Why would mitochondria not be alive? What does that even mean?

I imagine it's similar to how viruses are not considered to be alive, since they cannot reproduce without a host cell? But I have never been a fan of that argument either, both seem alive to me.

I think the idea here is that mitochondria developed independent of cells and later lived exclusively inside of them. In other words, they reproduced without cells. I am not sure, please correct me if I am wrong.

Re: Mitochondria Are Alive

#27

I expect such lively news to make this comment section the powerhouse of the front page. :^)

It's funny that this phrase has had such staying strength, while the key word in it, "powerhouse," has fallen out of fashion. The more modern American English way to phrase it would be "the power plant of the cell."

Anecdotally, I feel like I've heard "powerhouse" used somewhat regularly when describing impressive people, i.e.: "Such-and-such is an absolute powerhouse on the field", or "That person is so productive, they're a powerhouse".

So maybe the original usage has been subsumed by "power plant", but I think the word has alternative meanings which persist.

Re: Mitochondria Are Alive

#28

I expect such lively news to make this comment section the powerhouse of the front page. :^)

It's funny that this phrase has had such staying strength, while the key word in it, "powerhouse," has fallen out of fashion. The more modern American English way to phrase it would be "the power plant of the cell."

I’m pretty sure people still talk about powerhouses of hydroelectric dams

Re: Mitochondria Are Alive

#30
post #15

> If one considers bacteria as living entities — and all biologists seem to — then it is impossible to explain why mitochondria are not. There seems to be a strange, half-hubris, half-pride vein that runs through Humanity that would see us as lesser for being hosts to benevolent bacteria, despite us very obviously being unable to survive without benevolent bacteria.

I think it just attacks the wholeness of ‘self’ and starts to reveal the true complexity of nature.
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