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.
Primary, secondary, and tertiary endosymbiosis.
Endosymbiosis in Action
Because the leg muscles of children with muscular dystrophy are weak, they must perform the Gowers’
Location of lysosomes and mitochondria in a cultured living bovine pulmonary art
Rising sea level: Some areas will be affected by a rise of just 40 cm
Mitochondria