Autotrophic or eterotrophic bacteria
Depending on the way they take the two essential resources for their survival, energy and carbon (which they need for synthesising organic substances), bacteria can be classed as autotrophic or heterotrophic. Autotrophic prokaryotes can synthesise organic molecules from inorganic molecules, such as carbon dioxide. The energy needed for the synthesis can be supplied by light or other chemicals. The bacteria that, like plants, use solar energy are called photoautotrophic, while those that take energy from chemical reactions are called chemoautotrophic. Bacteria that need to feed on already synthesised organic molecules, as all animals do, are called heterotrophic. These bacteria can feed on virtually anything.
Special reports
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3 November 2014
Conan the bacterium
Have you ever leafed through the pages of a book of Guinness World Records? You can find records of all…
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2 July 2014
A hoax? No thank you, I prefer to find out myself!
In Italian, bufala: a hoax, also means a female buffalo...
31 August 2013
The Red List of Italian animals
Italy has a rich biodiversity due to its distinctive geographic...
15 September 2021
Can you be intelligent without a brain?
Can you be intelligent without a brain? The answer is "in a certain sense, yes" and this is demonstrated by…
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26 July 2021
Japanese beetles and other alien species
There is a beetle that has been invading the Italian countryside and cities for some time now, a small insect…
16 June 2021
A turtle’s life
World Sea Turtle Day is held on 16 June. First established in 2008, the day is now supported by Sea…
10 June 2021
The world below
Journey to the Centre of the Earth is a famous science fiction novel written by the great Jules Verne in…
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3 November 2014
Conan the bacterium
Have you ever leafed through the pages of a book of Guinness World Records? You can find records of all…
-
2 July 2014
A hoax? No thank you, I prefer to find out myself!
In Italian, bufala: a hoax, also means a female buffalo...
-
31 August 2013
The Red List of Italian animals
Italy has a rich biodiversity due to its distinctive geographic...
15 September 2021
Can you be intelligent without a brain?
Can you be intelligent without a brain? The answer is "in a certain sense, yes" and this is demonstrated by…
-
3 November 2014
Conan the bacterium
Have you ever leafed through the pages of a book of Guinness World Records? You can find records of all…
From the Multimedia section
Facts
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Bio-luminescence
Many sea animals, including a lot of fish and molluscs that live in the dark in the ocean depths...
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Bacteria as Sherlock Holmes
A drop of blood, a fragment of skin or a hair found on the scene of a crime can supply…
Down-pouring bacteria
It sounds incredible, but recent researches have found that bacteria can cause some atmospheric phenomena...
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13 May 2011
Bio-luminescence
Many sea animals, including a lot of fish and molluscs that live in the dark in the ocean depths...
-
Bacteria as Sherlock Holmes
A drop of blood, a fragment of skin or a hair found on the scene of a crime can supply…
Down-pouring bacteria
It sounds incredible, but recent researches have found that bacteria can cause some atmospheric phenomena...
-
Bio-luminescence
Many sea animals, including a lot of fish and molluscs that live in the dark in the ocean depths...