4. Louis Pasteur by Margaret Avery

4. LOUIS PASTEUR (Margaret Avery)

Questions & Answers (Based on Exercise)

Q. No. 1: Describe the early life of Pasteur. OR When did Pasteur start his professional career?  

Answer: Louis Pasteur was born in France in 1822. He graduated both in science and arts. Then, he became a Deputy Professor of Chemistry at the University of Strasburg and married in 1850.

Q. No. 2: Write a note on Pasteur’s Patriotism.             

Answer:Pasteur was a true patriot. In 1848, Pasteur got himself enlisted in the National Guard and donated 150 francs. He investigated silk-worm diseases and gave it a new life.

Q.No.3, 4: What did you mean by spontaneous generation? OR How did Pasteur prove that spontaneous generation was not a fact?                

Answer:Spontaneous generation means the production of living organism from non-living matter because of bacteria. Pasteur proved it wrong. He proved: “If a substance is heated to destroy all life and the entering air is free of germs, then bacteria do not develop into it.” 

Q.No.5: Describe the importance and popularity of the silkworm industry in France. What help did Pasteur render in curing the silkworm disease in the country? OR What happened to silk-worm industry in France?

Answer: To keep silk worm was chief home industry in France. It was attacked by an epidemic. Pasteur suggested to collect healthy eggs separately. He also advised to avoid over-heating and unhealthy conditions and saved this industry.

Q.No.6: How did Pasteur discover the treatment of the cattle disease Anthrax?

Answer: He proved that if exhausted or weakened germs were introduced in an animal’s blood, they could protect that animal against severe attack of Anthrax.

Q.No.7: How did Pasture discover the method of making Vaccine?     

Answer: By injecting first weakened and then fresh germs into the birds, he came to know how to weaken the germs. This was the method of making vaccine.

Q.No.8: Give an account of Pasteur’s treatment of Hydrophobia and how did he cure the first patient suffering in it?

Answer: Pasteur exposed the nervous tissue of the animal that had died of this disease and weakened them. He injected a boy named Joseph. After 14 days, the boy recovered. 

Q. No. 9: How did Pasteur show the way to the other scientists?  

Answer: The great discoveries made by Pasteur encouraged other scientists and they discovered the germs of different diseases like cholera, diphtheria, yellow fever and malaria, etc.

                                MORE IMPORTANT QUESTIONS (PAST PAPERS)

Q.No.1: Who discovered germs? OR Who discovered germs and who killed them? OR Who were Pasteur and Lister? What did they do? (FB-08, 10)

Answer: Pasteur was a French Chemist. He discovered that germs caused the diseases. Lister was an English surgeon. He applied Pasteur’s discovery to surgery and killed the germs.

Q.No.2: What happened to Pasteur on his wedding day? OR What happened to Pasteur on his marriage day? Why did Pasteur forget his wedding ceremony? (FB-09, 11, 12)

Answer: In 1950, Pasteur’s marriage ceremony was to take place but he forgot it. He was fully engaged in making some experiment. However, he was fetched by one of his friends.

Q.No.3: Describe hydrophobia or rabies briefly. (FB-2009) 

Answer: Hydrophobia is caused by the bite of a dog. It causes shudder, thirst, restlessness, fits of furious rage, pain, convulsive movement and too much mucus.                 

Q.No.4: When was the Pasteur Institute built and why?    

Answer: The Pasteur Institute was built in 1888. It was built to show the world-gratitude for Pasteur’s services and work especially on disease.

Q.No.5: When did Pasteur die?                                           

Answer:Pasteur died in 1895 at the age of 73.