Question

Enteric coliforms are characterized by all of these EXCEPT: (a) gram- (b) non-spore forming (c) gram+ (d) rods.

Answer 1

Answer

answer is option c- gram + .

all the other options are characteristics of enteric coliforms.

Coliform microorganism is outlined as Rod-shaped gram-negative non-spore forming and motile or non-motile bacteria which may ferment lactose with the production of acid and gas once incubated at 35–37°C. Coliform bacteria usually occur in the intestinal tract of animals, including man. they are nearly always present in water containing enteric pathogens. they're comparatively easy to isolate and that they survive longer than the disease-producing organisms.

e.g., Escherichia coli, Enterobacter aerogenes, and Klebsiella pneumoniae.