Which one of the following statements about endosymbiosis and the origin of the eukaryotic cell is false?
A. Mitochondria are the descendants of purple nonsulfur bacteria.
B. The chloroplasts of red and green alga are the descendants of cyanobacteria.
C. The brown algae acquired their chloroplasts by engulfing a prokaryotic cell with chloroplasts.
D. Not all compartments of the eukaryotic cell are derived from the endomembrane system.
E. Ultimately, both the chloroplast and the mitochondria of eukaryotes are descendants of prokaryotic cells.
Answer: C