SAT Subject Biology Practice Question 2: Answer and Explanation
2. Cyanobacteria are photosynthetic prokaryotes. Which organelles do cyanobacteria cells contain?
A. I only
B. II only
C. III only
D. I and II only
E. I and III only
Correct Answer: C
Cyanobacteria are prokaryotes, and so do not contain membrane- bound organelles such as chloroplasts or a nucleus. All prokaryotes, however, do contain ribosomes.