Evidence for the endosymbiont theory is that mitochondria and chloroplasts: - Are appropriate size to be descendants of eubacteria. - Have inner membranes similar to those on prokaryotic plasma membranes. - Replicate by splitting, as in prokaryotes. - DNA is circular and different from the DNA of the cell's nucleus. - Contain their own components for DNA transcription and translation into proteins. - Have ribosomes similar to prokaryotic ribosomes. - Molecular systematics lend evidence to support this theory.
Mitochondria Have their own DNA Bound by double membrane
Mitochondria Break down fuel molecules ( cellular respiration) –Glucose –Fatty acids Release energy –ATP
Chloroplasts Derived form photosynthetic bacteria Solar energy capturing organelle
Photosynthesis Takes place in the chloroplast Makes cellular food – glucose