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.
please i request to give answer of all'questions!!!
Answers
Refer the Explanation
Explanation:
1. Microorganisms-Microorganisms or microbes are microscopic organisms that exist as unicellular, multicellular, or cell clusters.
Main group of microorganisms - fungi , bacteria , algae , protozoa
2. Viruses- A virus is a infectious agent that replicates only inside the living cells of an organism. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
3. ( refer attachment)
4. To form curd , firstly some bacteria ( lactobacillus) is added into warm milk and the bacteria multiples in the milk and turn it into curd.
5. Baker uses yeast to make bread as yeast reproduces rapidly and produces carbon dioxide during respiration . Due to this , the dough rises and increase its volume .
6. Nitrogen Cycle -
- Nitrogen is present in the atmosphere as gas
- Rhizobium ( lightning fixing bacteria) change the atmospheric nitrogen into nitrogen compounds.
- The nitrogen compunds are uptake by plants for nutrients.
- Animals reat the plants.
- Nitrogenous waste from excreted and death .
- Bacteria turn the nitrogenous compounds into atmospheric nitrogen
- The cycle repeats
7. Three Medicinal uses of Microorganism -
- Penicillin - a fungus which prevents the growth of bacteria
- Antibiotics - made from fungus and bacteria which cure a variety of diseases.
- Vaccine - dead or weak microbes are injected , due to which body produces antibodies. By this in future the the body is protected from the disease causing microbes.
8. By Mosquitos , malaria spread from person to person.
9. Communicable Diseases - Diseases which spread to person to person due to physical contact are known as communicable diseases.
Eg - Cholera , common cold , chicken pox and tuberculosis.
10. 1) Citrus Canker
2) Rust of wheat
I can't complete the rest 5 questions but I Hope my attemped answers will help you :)