Which feature, indicated in the following figure, do Chlorobi share with Chloroflexi and Chloracidobacterium thermophilum?
A) chlorosomes
B) thylakoids
C) halophily
D) endospores
E) hormogonia

Question

Which feature, indicated in the following figure, do Chlorobi share with Chloroflexi and Chloracidobacterium thermophilum? 
A) chlorosomes 
B) thylakoids 
C) halophily 
D) endospores 
E) hormogonia

Quizplus · Accepted Answer

Chlorobi, Chloroflexi, and Chloracidobacterium thermophilum are all photosynthetic bacteria that utilize chlorosomes for photosynthesis. Chlorosomes are specialized structures that contain pigments like bacteriochlorophylls and can absorb light in low-light conditions. Chloroflexi are filamentous bacteria that can also have chlorosomes while Chloracidobacterium thermophilum is a thermophilic bacterium that has an unusual type of chlorosome called a chlorobium vesicle. Thylakoids are membrane-bound structures found in some photosynthetic bacteria and are not shared by all three groups. Halophily refers to the ability to live in high-salt environments and is not related to photosynthesis. Endospores are the dormant, resistant structures produced by some bacteria as a survival mechanism and are not specific to these three groups. Hormogonia are structures produced by some cyanobacteria for dispersal and are not related to these groups.

Which Feature, Indicated in the Following Figure, Do Chlorobi Share