Question: 100% NCERT covered from Particular Keyword.Explanations are 100% from NCERT | [Difficult level: Easy] From NCERT NEET Derived Question.
The bacteria present in the gut of several ruminant animals
1. Are anaerobes with peptidoglycan cell wall
2. Are similar to other bacteria in cell wall structure
3. Are responsible for production of biogas
4. Are known as halophiles
Answer:
(3)
Methanogens are present in the gut of several ruminant cattles. These are obligate anaerobe and help in biogas production.
👉certain bacteria,
which grow anaerobically on cellulosic material, produce large amount
of methane along with CO2 and H2. These bacteria are collectively called
methanogens, and one such common bacterium is Methanobacterium.
These bacteria are commonly found in the anaerobic sludge during
sewage treatment. These bacteria are also present in the rumen (a part of
stomach) of cattle. A lot of cellulosic material present in the food of cattle
is also present in the rumen. In rumen, these bacteria help in the
breakdown of cellulose and play an important role in the nutrition of
cattle.
👉Thus, the excreta (dung) of cattle, commonly called
gobar, is rich in these bacteria. Dung can be used for generation of biogas,
commonly called gobar gas.
👉The
technology of biogas production
was developed in India mainly
due to the efforts of Indian Agricultural Research Institute (IARI) and
Khadi and Village Industries Commission (KVIC)
👉Methanogens produce
methane (biogas) while degrading plant waste.
👉Archaebacteria: These bacteria are special since they live in some of the most harsh habitats
which grow anaerobically on cellulosic material, produce large amount
of methane along with CO2 and H2. These bacteria are collectively called
methanogens, and one such common bacterium is Methanobacterium.
These bacteria are commonly found in the anaerobic sludge during
sewage treatment. These bacteria are also present in the rumen (a part of
stomach) of cattle. A lot of cellulosic material present in the food of cattle
is also present in the rumen. In rumen, these bacteria help in the
breakdown of cellulose and play an important role in the nutrition of
cattle.
👉Thus, the excreta (dung) of cattle, commonly called
gobar, is rich in these bacteria. Dung can be used for generation of biogas,
commonly called gobar gas.
👉The
technology of biogas production
was developed in India mainly
due to the efforts of Indian Agricultural Research Institute (IARI) and
Khadi and Village Industries Commission (KVIC)
👉Methanogens produce
methane (biogas) while degrading plant waste.
👉Archaebacteria: These bacteria are special since they live in some of the most harsh habitats
such as extreme salty areas (halophiles), hot springs (thermoacidophiles)
and marshy areas (methanogens). Archaebacteria differ from other bacteria
in having a different cell wall structure and this feature is responsible for
their survival in extreme conditions. Methanogens are present in the gut
of several ruminant animals such as cows and buffaloes and they are
responsible for the production of methane (biogas) from the dung of these
animals.
and marshy areas (methanogens). Archaebacteria differ from other bacteria
in having a different cell wall structure and this feature is responsible for
their survival in extreme conditions. Methanogens are present in the gut
of several ruminant animals such as cows and buffaloes and they are
responsible for the production of methane (biogas) from the dung of these
animals.
