Multiple choice Which of the following cellular structures represents bacterial microcompartments? Acanthosome Aurosome Carboxysome Catalysome Cercidosome Reveal answer Fill a bubble to check yourself C Correct answer Explanation Carboxysome is an inclusion body, present in some blue-green algae and autotrophic bacteria, that contains the enzyme ribulose-1,5-bisphosphate carboxylase and that functions in the fixation of carbon dioxide by these organisms.