Useful Microorganisms: Are Microorganisms Useful to Us?

A number of bacteria and protozoa are helpful in the digestion of food inside the stomach or small intestines of herbivores such as cows, goats and rabbits. Useful bacteria are also found in the human digestive system.

Useful Microorganisms: Are Microorganisms Useful To Us?

By Mr Ghaz, June 3, 2010

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Useful Microorganisms

1.   Microorganisms are useful to humans and other organisms. This includes bacteria, fungi, algae and protozoa.

2.   Microorganisms play an important role in food digestion, the decay process, medicine, agriculture and industry.

Food Digestion

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1.   A number of bacteria and protozoa are helpful in the digestion of food inside the stomach or small intestines of herbivores such as cows, goats and rabbits. Useful bacteria are also found in the human digestive system.

2.   Herbivores feed on plant tissues which contain cellulose. Herbivores do not secrete the cellulose enzyme which is important in the digestion of cellulose. Instead, certain microbes inside the stomach or small intestines of these herbivores secrete this enzyme which can digest cellulose into glucose.

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3.   The main source of food for termites is wood, which contains cellulose. A species of protozoa is found inside the intestines of termites. The two organisms benefit each other mutually. The termites provide food and shelter for the protozoa and the protozoa secrete cellulose enzyme for the termites to digest cellulose into glucose.

The Decay Process

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1.   Microorganisms such as bacteria and fungi act as decomposers in the ecosystem, decomposing dead plants and animals.

2.   These are saprophytic microorganisms that secrete enzymes which change complex organic substances into simple molecules as follows:

Dead plants and animal tissues (complex organic Substances) — Ammonium compounds — Nitrate compounds (easily absorbed by plants)

3.   Through the decay process, elements such as carbon, nitrogen and sulphur are released into the soil, making it more fertile.

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9 Responses to “Useful Microorganisms: Are Microorganisms Useful to Us?”
  1. cardy Says...

    On June 3, 2010 at 5:09 am

    You always pull out all the stops with you’re amazing articles this one was up there with the rest of them. What a great read!


  2. Guy Hogan Says...

    On June 3, 2010 at 11:47 am

    Yes, this was very informative. A lot of this stuff I did not know. Thank you.


  3. CHAN LEE PENG Says...

    On June 3, 2010 at 11:09 pm

    Microorganisms have helped human in many fields. We all should give a tribute to them but some of them are really bad because they cause food poisoning and tooth decay. Thanks and liked it.


  4. ronthoughts Says...

    On June 4, 2010 at 2:11 am

    I do make homemade yogurt sometimes by the help of the good microorganism, the bad ones must be avoided.
    Great write my friend.
    Liked!


  5. banosorio Says...

    On June 4, 2010 at 6:46 am

    nice article!


  6. papaleng Says...

    On June 5, 2010 at 11:11 am

    A very informative post. While reading, the word “Yakult” comes to my mind.


  7. tink Says...

    On November 1, 2010 at 3:21 pm

    Wow! luv it it awesome


  8. G.YOGA Says...

    On June 9, 2011 at 5:25 am

    IT WAS A BEAUTIEST INFORMATION


  9. Shannen Says...

    On August 27, 2012 at 6:53 am

    Thank you for this, it really helped me with my assignment! :)


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