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Author Question: Biologists suspect that endosymbiosis gave rise to mitochondria before plastids (Read 731 times)

Millan

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on: Jul 21, 2013
Biologists suspect that endosymbiosis gave rise to mitochondria before plastids partly because
A) the products of photosynthesis could not be metabolized without mitochondrial enzymes.
B) all eukaryotes have mitochondria (or their remnants), whereas many eukaryotes do not have plastids.
C) mitochondrial DNA is less similar to prokaryotic DNA than is plastid DNA.
D) without mitochondrial CO2 production, photosynthesis could not occur.
E) mitochondrial proteins are synthesized on cytosolic ribosomes, whereas plastids utilize their own ribosomes.


TI

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Reply #1 on: Jul 21, 2013
Hi! I picked B and got it right, so... ;)


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Millan

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Reply #2 on: Aug 6, 2013
Well this makes life easier, thanks a lot.


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