(Original post by merlin444)70 Ribosomes for Mitochnodria as a reason for prokaryote ? even though everyone else put double membrane!I read up on a website this morning that had a paragraph about something like this and I just put prokaryotic cells do not have mitochondria yet they are still able to respire aerobically.(I thought that was enough to imply that prokaryotes could do what a mitochondria does. The website says 'Mitochondria are very similar to bacteria and are thought to have originated from bacteria. This points you to the answer: bacteria produce ATPs the same way mitochondria do, with the oxidation machinery place in their plasma membrane (analogous to the mitochondrial membrane).' )
My Answers are really similar to yours on all 4. questions
On Mitochnondria -I think in reality it will be a case if you mention anything realistic, such as double membrane or matrix or whatever you will get a mark for sure.
But these are merely similarities. The question asked why scientists first though were related and book mentions svedborg constant w.r.t ribosome's, this why scientists originally though they originated from prokaryotes.
Anyway now bored myself ! - good luck everyone!