A particular species of protist has obtained a chloroplast via secondary endosymbiosis. How can you tell?
A) The chloroplasts have three or four membranes.
B) The chloroplasts have only a single pigment.
C) The chloroplasts are exceptionally small.
D) The chloroplasts have both nuclear and cyanobacterial genes.

Question

Quizplus · Accepted Answer

Chloroplasts obtained through secondary endosymbiosis typically have three or four membranes. This is because the chloroplast is engulfed by a eukaryotic host cell in a secondary endosymbiotic event, adding an extra layer or layers of membrane beyond the two found in primary endosymbiosis-derived chloroplasts.

A Particular Species of Protist Has Obtained a Chloroplast Via