SAT Subject Biology Practice Question 2: Answer and Explanation

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Question: 2

2. Cyanobacteria are photosynthetic prokaryotes. Which organelles do cyanobacteria cells contain?

I. Chloroplasts

II. Nucleus

III. Ribosomes

A. I only
B. II only
C. III only
D. I and II only
E. I and III only

Correct Answer: C

Explanation:

Cyanobacteria are prokaryotes, and so do not contain membrane- bound organelles such as chloroplasts or a nucleus. All prokaryotes, however, do contain ribosomes.

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