GENERAL KNOWLEDGE

GK

ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which bacterium found in soil is anaerobic?
A
Clostridium Sp
B
Thiobacillus Sp
C
Azatobacter Sp
D
Bacillus Sp
Explanation: 

Detailed explanation-1: -Clostridia are strictly anaerobic to aerotolerant sporeforming bacilli found in soil as well as in normal intestinal flora of man and animals. There are both gram-positive and gram-negative species, although the majority of isolates are gram-positive. Exotoxin(s) play an important role in disease pathogenesis.

Detailed explanation-2: -Clostridium spp. are ubiquitous in nature, found in soils and sediments throughout the world and as members of the intestinal microbiome of humans and most other animals. Over 70% of humans are colonized with clostridia at concentrations of 108 to109 organisms per gram of feces.

Detailed explanation-3: -Clostridium perfringens is an anaerobic, spore forming bacteria that is widely distributed in the environment and frequently occurs in the intestines of humans and many domestic and wild animals. Spores of this organism are found in soil, sediments, and areas subject to human or animal fecal pollution.

There is 1 question to complete.