Q1.WHAT ARE MICROORGANISMS ? NAME ANY MAIN GROUP OF MICROORGANISMS.
Q2.WHAT ARE VIRUSES ?
Q3. DRAW DRAW THE DIFFERENT SHAPES OF BACTERIA.
Q4. HOW DO WE FORM CURD AT HOME?
Q5. DISCUSS WHY A BAKER USES YEAST TO MAKE BREAD.
Q6. DEFINE THE NITROGEN CYCLE.
Q7. DISCUSS WITH EXAMPLE ANY THREE MEDICINAL USES OF MICROORGANISMS.
Q8. HOW DOES MALARIA SPREAD FROM ONE PERSON TO ANOTHER.
Q9. WHAT ARE COMMUNICABLE DISEASES GIVE THREE EXAMPLE.
Q10. NAME ANY TWO DISEASES CAUSED BY MICROORGANISMS IN ANIMAL AND PLANTS.
Q11. HOW CAN WE MAKE OUT IF A FOODSTUFF IS FIT FOR CONSUMPTION?
Q12. list the main condition needed for the growth of microorganisms.
Q13. WHAT IS FOOD POISONING? HOW CAN WE PREVENT IT?
Q14. DEFINE FOOD PRESERVATION DESCRIBE ANY FIVE WAYS IN WHICH WE CAN PREVENT FOOD FROM SPOILAGE.
Q15. WHAT IS PASTEURIZATION? NAME ONE COMMON FOOD THAT CAN BE WELL PRESERVED BY THIS METHOD.
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Answers
Answer:
A microorganism or microbe is an organism which is microscopic, which means so small that people cannot see them with naked eye. The study of microorganisms is called microbiology. Microorganisms include bacteria, fungi, archaea, protists and viruses, and are among the earliest known life forms.
They can be divided into six major types: bacteria, archaea, fungi, protozoa, algae, and viruses.
Virus: A microorganism that is smaller than a bacterium that cannot grow or reproduce apart from a living cell.
To make the curd, warm the milk.
Add the curds, mix well and cover.
Keep aside until the curds set (approximately 5 to 6 hours). During the cold climate, place inside a cupboard or closed oven to set.
Refrigerate after the curd have set and use as required.
the nitrogen cycle helps bring in the inert nitrogen from the air into the biochemical process in plants and then to animals. Plants need nitrogen to synthesize chlorophyll and so the nitrogen cycle is absolutely essential for them.
Medicinal Use of Microorganisms
The source of most medicines are microorganisms.
The medicines which kill/stop the growth of disease causing organisms are known as antibiotics.
For example, streptomycin, tetracycline, erythromycin etc.
Microorganisms and its uses
Production of dairy products: Bacteria are the key players here. ...
Bread Baking: A species of Streptococcus is added to the dough before making bread to bring about the required fermentation.
Alcoholic Drinks: ...
Organic acids: ...
Enzymes: ...
Steroid production: ...
Help in sewage treatment: ...
Used as insecticides:
Explanation: