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Biology/Micro-Organisms: Friends or foe


Q1.  How does micro organisms influence a baker, a milkman, a farmer and a pharmacist?

Q2. Generally a person takes medicines after he falls sick. Then why are we vaccinated or immunized before falling sick?

Q3. What are various preservative methods utilized in the following food items:
Hokh-e-seun ( Dried vegetables )

Hi Sami
1. Bakers use yeasts in breadmaking
   Milk contains a bacillus that ferments milk
    Some Farmers make cheese and bacteria are needed for the process
   Parmacists supply antibiotic many of which require micro-rganisms for production

2.Most medicines  onlytreat the symptoms. It is better to avoid the illness and possible complications

3.Sorry but this is outside my expertise


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Walter Hintz


Science teacher for over 50 years. MSc. in biology. I can answer questions in general biology, zoology, botany, anatomy and physiology and biochemistry.


I have a MSc in biology and have been a science teacher for over 50 years. At present I am a faculty member at a college and a science consultant at seven catholic schools.

The Ohio journal of Science
Momentum-The Journal of the Catholic Education Association

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