The chloroplasts of red algae have a characteristic color because the red algae
A) obtained their chloroplast by secondary endosymbiosis.
B) retain certain pigments from the original prokaryote symbiont lost in green algae and plants.
C) acquired red pigments from a red tide.
D) have a peptidoglycan-containing cell wall.
E) have a thick cell wall that refracts the chlorophyll color.

Question

Quizplus · Accepted Answer

Red algae obtained their chloroplasts through secondary endosymbiosis, but the characteristic red color is due to the retention of certain pigments from the original prokaryotic symbiont that have been lost in green algae and plants.

The Chloroplasts of Red Algae Have a Characteristic Color Because