Question

The arrangement represented in Figure 11.1 is typical of which of the following genera of bacteria?
A) Bacillus 
B) Corynebacterium 
C) Escherichia 
D) Actinomyces 
E) Streptococcus

Accepted Answer

The arrangement of bacteria in a V-shape, as seen in Figure 11.1, is typical of Corynebacterium. Bacillus typically forms chains, Escherichia forms clusters, Actinomyces forms irregular clusters or filaments, and Streptococcus forms chains or pairs.