The
bacterial structure is very simple in functionality; they are very complicated
in behavior. Compared to many other organisms, bacteria as an assembly might
show the most widespread metabolic diversity. Some kinds of the bacteria are
autotrophic, that is, they synthesize their own food from inorganic or non
living substrates. They may be classified as chemosynthetic autotrophic or photosynthetic
autotrophic. Biology Assignment Help could elucidate that the large majority of
bacteria are heterotrophs, that is, they do not synthesis their own food though
depend on other non living or on dead organic matter for their food.
These
bacteria are very unique as they live in some of the most harsh habitats or atmosphere
like extreme salty regions, hot springs and marshy regions. Archaebacteria is also
differing from other bacteria in having a dissimilar cell wall structure and
this discrete feature is responsible for their survival in extreme circumstances.
Methanogens are easily found in the guts of numerous ruminant animals like cows
and buffaloes and they are responsible for the generation of methane from the
dung of these animals.
There
are thousands types of various eubacteria or true bacteria. They are characterized
by the presence of a stiff or strong cell wall, and when motile, a flagellum. The
cyanobacteria termed to as blue-green algae have chlorophyll similar to green
plants and are Photosynthetic autotrophs. The cyanobacteria are colonial, unicellular,
or filamentous, and marine or terrestrial algae. Biology assignment help states
that the colonies are normally surrounded by strong sheath. They frequently generate
blooms in polluted water bodies. Several of these organisms can fix nitrogen in
more specific cells known as Anabaena, heterocysts, and Nostoc.
Chemosynthetic
autotrophic bacteria oxidize different inorganic substances like nitrates, and
ammonia nitrate and use the discharged energy for their ATP production. They
play a significant role in recycling nutrients such as phosphorous, nitrogen, iron
and sulphur.
Biology
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