Which statement about cyanobacteria and the photosynthetic eukaryotes is false?
A)Both cyanobacteria and the photosynthetic eukaryotes are photoautotrophs.
B)Both cyanobacteria and the photosynthetic eukaryotes produce oxygen as a by-product of noncyclic photophosphorylation.
C)Both cyanobacteria and the photosynthetic eukaryotes use carbon dioxide as their source of carbon.
D)Unlike any photosynthetic eukaryotes, many cyanobacterial species are nitrogen fixers.
E)The cyanobacteria acquired chloroplasts through endosymbiosis of unicellular eukaryotes.

Question

Which statement about cyanobacteria and the photosynthetic eukaryotes is false?  
A)Both cyanobacteria and the photosynthetic eukaryotes are photoautotrophs.
B)Both cyanobacteria and the photosynthetic eukaryotes produce oxygen as a by-product of noncyclic photophosphorylation.
C)Both cyanobacteria and the photosynthetic eukaryotes use carbon dioxide as their source of carbon.
D)Unlike any photosynthetic eukaryotes, many cyanobacterial species are nitrogen fixers.
E)The cyanobacteria acquired chloroplasts through endosymbiosis of unicellular eukaryotes.

Quizplus · Accepted Answer

The statement that cyanobacteria acquired chloroplasts through endosymbiosis of unicellular eukaryotes is false. This is because it is believed that the chloroplasts found in photosynthetic eukaryotes are the result of endosymbiosis between a eukaryotic host cell and a photosynthetic cyanobacterium.

Which Statement About Cyanobacteria and the Photosynthetic Eukaryotes Is False