Microorganisms friends and foe Worksheet-2

Microorganisms friends and foe Worksheet-2

 

Fill in the blanks:

 

  1. Meat and fish are covered by ______ to check the growth of microorganisms.

  2. In jams and jellies sugar reduces ______ content which inhibits the growth of bacteria.

  3. In _______ the milk is heated to about 70ºC for 15 to 30 seconds and then suddenly chilled and stored.

  4. The most common carrier of communicable disease is _____.

  5. Pickles are preserved by adding ______ or ________.

  6. Citrus canker is caused by ________.

  7. _______ is dangerous human and cattle disease caused by bacterium.

  8. Anthrax is dangerous human and cattle disease caused by______.

  9. _______ is the protozoan which causes malaria.

  10. _______ is the carrier of malaria or dengue.

  11. _______ group of algae helps in nitrogen fixing.

  12. _______ is the bacteria used for production of acetic acid a from alcohol. s

  13. Foot and mouth disease is caused by_____.

  14. Antibodies are _____ made by immune system of the body which attack the foreign bodies and prevent diseases.

  15. _____ made by immune system of the body which attack the foreign bodies and prevent diseases.

  16. Cholera is caused by ______.

  17. Bacillus, coccus and spirillum are types of ______.

  18. Rust of wheat is caused by _____.

  19. _____ reproduce only inside the cells of the host organism.   

  20. Common ailments like cold, influenza (flu) and most coughs are caused by ______.

  21. Diseases like dysentery and malaria are caused by _____.

  22. Typhoid and tuberculosis (TB) are ______  diseases      

  23. In agriculture bacteria are used to increase ______ by fixing nitrogen.

  24. The bacterium ______ promotes the formation of curd.         

  25. _____ is used for commercial production of alcohol and wine.       

  26. Process of conversion of sugar into alcohol is known as ______.

  27. When a disease-carrying microbe enters our body, the body produces ______ to fight the invader.     

  28. Disease causing microorganisms are called as ______.

  29. Diseases that can spread from an infected person to a healthy person through air, water, food or physical contact are called ______ diseases.

  30. Female Anopheles mosquito carries the parasite of ______ disease.

  31. Chemicals used to check the growth of microorganisms are called ______.

  32. _____ milk can be consumed without boiling as it is free from harmful microbes 

  33. The method of pasteurization was discovered by _____.

  34. _____ bacteria lives in the root nodules of leguminous plants.        

 

Answer:

  1. (dry salt, salt)

  2. (Moisture)

  3. (Pasteurization)

  4. (House fly)

  5. (salt,  sugar, vinegar, preservative)

  6. (bacteria)

  7. (anthrax)

  8. (bacteria, bacterium)

  9. (Plasmodium)

  10. (mosquito, mosquitoes)

  11. (blue green)

  12. (Acetobacteraceti, acetobacter)

  13. (Virus)

  14. (proteins, protein)

  15. (antibodies, antibody)

  16. (Vibrio cholerae, bacteria)

  17. (bacteria)

  18. (fungi, fungus)

  19. Viruses

  20. Viruses

  21. Protozoans

  22. Bacterial

  23. Soil fertility

  24. Lactobacillus

  25. Yeast

  26. Fermentation

  27. Antibodies

  28. Pathogens

  29. Communicable

  30. Malaria

  31. Preservatives

  32. Pasteurized

  33. Louis Pasteur

  34. Rhizobium