00:01
According to the theory of endosymbiosis, which organelles evolved from smaller precarote that established residents within others? mitochondria and chloroplasts.
00:12
Bacchials and lysosomes.
00:14
The golgi and the endoplasmic reticulum.
00:17
Centrials and ribosomes.
00:19
So i'll start the answer.
00:20
It's a.
00:21
Mitochondria and chloroplasts.
00:23
And the story goes like this.
00:25
So there was a larger cell, and then, let's start with mitochondria.
00:31
Small cell.
00:33
And this smaller prokaryo was capable of aerobic respiration.
00:37
And the larger cell engulfed it, but it didn't digest it.
00:44
So it ate it, but it didn't actually digest it.
00:46
This remained alive inside the host.
00:49
And they formed a symbiotic relationship.
00:52
So the ancestor of the mitochondria got shelter and access to whatever the bigger cell ate.
00:59
And the bigger cell got the atp that was being produced from this very efficient little prokaryote.
01:07
And so that developed into a more long -term relationship where this would replicate within the host, and whenever the host replicated, its offspring would inherit some of these endosymbiopes.
01:20
And so that's where mitochondria come from...