Microorganisms friends and foe Worksheet-10

Microorganisms friends and foe Worksheet-10


Answer the following Questions:

  1. Name the bacteria responsible for the disease typhoid.

  2. Name the carrier of malarial parasite.

  3. Which microorganism is the cause of malaria?

  4. Write two diseases caused by bacteria.

  5. Name any two items that are prepared using yeast.

  6. Name the bacteria that turn:

(a) Milk into curd

(b) Atmospheric nitrogen into nitrates.

  1. Name the bacterium which is found in root nodules of leguminous plants.

  2. Who discovered Penicillin?

  3. Name the microorganisms which can fix atmospheric nitrogen in the soil.         

  4. Can microorganisms be seen with the naked eye? If not, how can they be seen?

  5. What are the major groups of microorganisms?

  6. What are microorganisms?

  7. What name is given to organisms that are so small and can be seen through a microscope?

  8. Name two diseases caused by viruses.

  9. Name two diseases caused by protozoan.

  10. Which microorganisms are unicellular?

  11. Name two multicellular microorganisms.

  12. Name the bacterium that sours milk and is used to make curd from milk.

  13. Name the bacterium used for production of acetic acid from alcohol.

  14. Define fermentation.

  15. What are antibiotics?

  16. Name two commonly used antibiotics.

  17. Why antibiotics are not effective against cold and flu?

  18. What are antibodies?

  19. What is a vaccine?

  20. Name two diseases which can be prevented by vaccination.

  21. Name the diseases for which oral drops are given as vaccination.

  22. What are biological nitrogen fixers?

  23. What are pathogens?

  24. What are communicable diseases?