12th Class English Ch 4 Louis Pasteur Short Question Answer
1.Describe the early life of Pasteur?
He was born at Dole in the Jura district of France in 1822. He was sent to school at the Communal College. He graduated in Science and Arts from Besancon and was given a post on the College staff. In 1848 at the age of twenty six he became deputy professor of chemistry in the University of Strasburg.
2.Give some instances of Pasteur’s patriotism?
Pasteur was a true patriot. He enrolled himself in the national Guard. Once he gave all his wealth 150 francs at an altar. He returned the degree of Doctor of Medicine to the University of Bonn as Germany had plunged into war with his country France.
3.What do we mean by spontaneous generation?
It is the theory which says that life can come into being from non-living materials. It is also called autogenesis. Pasteur proved it wrong.
4.how did Pasteur prove that spontaneous generation was not a fact?
He proved: “if a substance is heated enough to destroy all life in it and the air contact with it should be filtered bacteria do not develop in it.
5.Describe the importance and popularity of the silkworm industry in France. What help did Pasteur render in curing the silkworm disease in his country?
The silkworm industry was very popular in France. Every family had a room for rearing silkworm. A disease had destroyed the industry. Pasteur asked people to keep only those eggs laid by healthy worms. He asked them to keep things clean.
6.How did Pasteur discover the treatment for the cattle disease, Anthrax?
He grew anthrax’s weakened germs. He proved that these weakened herms could protect the animal from the disease. This saved millions of animals.
7.How did Pasteur discover the method of making vaccines?
in 1879 Pasteur was working at fowl-cholera. He had the cultivations of germs. He went on a holiday. On his return he found the germs dead or dying. He inoculated the birds with those dead or dying germs. The birds fell slightly ill but recovered. Then he inoculated the birds with the mixture of strong and weak germs. The birds did not fall ill.
8.Give an account of Pasteur’s treatment of Hydrophobia and hoe he curd the first patient suffering from it?
Pasteur took the weakened germs of Hydrophobia and injected them into dogs. The dogs became immune to the disease. Pasteur cured the first patient of hydrophobia by inoculating him for ten days.
9.How did Pasteur show the way to other scientists? Give an account of the discoveries?
Pasteur’s work urged scientists to find the cures for other diseases. From 1880 to 1890 they discovered the germs of consumption diphtheria typhoid lock-jaw cholera and Malta fever. In 1893 antitoxin was discovered. It cures diphtheria. In 1894-97 the protective inoculation treatments for typhoid and plague were discovered. In 1898-1900 it was proved that malaria and yellow fever were conveyed by mosquitoes.
10.Describe the early life of Pasteur in three lines?
He was born at Dole in the Jura district of France in 1822. His father was a soldier. He was sent to school at the Communal College. He graduated in Science and Arts from Besancon.
11.Show that Pasteur was great patriot? OR narrate some events that show Pasteur’s patriotism?
Pasteur was a true patriot. He enrolled himself in the National Guard. Once he gave all his wealth-150 francs at and altar. He became very sad when he could not enroll himself in the army.
12.Why was Pasteur rejected from the army?
Pasteur was refused to be enrolled in the National Guard because he was a half-paralysed man.
13.Did Pasteur take interest in his studies at school?
At first he showed no interest in studies. He was attracted to fishing and making sketches. However he realized the cost of his education and soon developed a passion for work.
14.How did Pasteur embarrass the professor of Chemistry at Besancon?
Pasteur was greatly interested in Chemistry. He used to embarrass the professor of that subject with unanswerable questions. The professor had to admit that he did not know the answers to his questions.
15.Why did Pasteur forget his wedding ceremony?
Pasteur was so buried in his work that on the wedding day he entirely forget the ceremony and had to be fetched by a friend. However the marriage was very successful.
16. What is spontaneous generation?
It is the theory which says that life can come into being from non-living materials. It is also called autogenesis.
17.What did Pasteur prove about spontaneous generation? Or How did Pasteur prove that spontaneous generation was not a fact?
By doing an experiment he proved: ‘if a substance is sufficiently heated to destroy all life in it and the air contact with it be filtered the substance does not alter i.e. bacteria does not develop in it.
18.What did Pasteur write to the University of Bonn in Germany? OR Why did Pasteur return the degree of Doctor of Medicine to the University of Bonn?
The University had given Pasteur the degree of Doctor of Medicine. When Germany and France plunged into war. Pasture being and ardent lover of France returned the diploma to the University and asked it to remove his name from its Faculty.
19. What research did Pasteur undertake when Germany and France plunged into a war?
He took up the study of brewing. He wanted to enable France to produce as good beer as that produced in Germany.
20.How serious was the problem of inflammation of wounds in Lister’s days?
The inflammation of wounds was serious problem. Often it resulted in the amputation. Often even this could not save the life of patient. Thus operation was the last option.
21.What was the epidemic into which the French Government forced Pasteur to make research?
He was asked to research into an epidemic of silk worm diseases which for fifteen or sixteen years had been destroying the silk-industry in the South of France.
22.What were the effects of silkworm disease?
The silk growers were disappointed. Thousands of families were ruined economically. The things were so serious that the Government asked Pasteur to investigate the disease.
23.What did Pasteur advise people to do to prevent the silkworm disease? Or What help did Pasteur render in curing the silkworm disease in his country?
He asked people to keep only those eggs laid by healthy worms. He asked them to avoid over-crowding uncleanliness over-heating unhealthy conditions.
24.What was Pasteur’s research on Anthrax? OR How did Pasteur discover the treatment for the cattle disease Anthrax?
He grew anthrax’s weakened germs. He proved that these weakened gems could cause the disease only in a slight form and protect the animal from the disease. This saved millions of animals.
25.What did Pasteur do about puerperal fever? OR What did Pasteur discover about puerperal fever?
He discovered the germ of the fever. He found the cause of the spread of disease. He proved that the doctor himself carried the germs of the disease from the diseased woman to the healthy one.
26. Which was the first human disease to which Pasteur applied inoculation?
Hydrophobia or Rabies was the first human disease to which Pasteur applied inoculation.
27.What is Hydrophobia or Rabies?
It is caused by the bite of a mad dog. Its signs are: restlessness shudders at the least breath of air thirst impossibility of swallowing convulsive movement and the fits of rage.
28.How did the Pasteur’s cure of hydrophobia stir/motivate other scientists? OR name the diseases of which germs were discovered during 1880 to 1890?
The cure of hydrophobia urged scientists to find the cures for other diseases. From 1880 to 1890 they discovered the germs of consumption diphtheria typhoid lock-jaw and Malta fever.
29.How can malaria be checked/prevented/stopped? OR What two ways can save us from malaria?
Malaria can be prevented either by destroying the breeding-places of the mosquito or by protecting man from the bite of the mosquito.
30.What is a tsetse-fly and what disease it causes?
It is a two-winged biting fly found in Central Africa. It feeds on the blood of humans and animals. It causes several diseases including sleeping sickness.
31.Who was Louis Pasteur?
Louis Pasteur was a great scientist. He was born in France in 1822. He was a great patriot. He proved that the theory of spontaneous generation was wrong. He discovered the treatment for Anthrax. He discovered the method of making vaccines. He found the cure fo hydrophobia.
32.What things did Pasteur inherit from his father?
Pasteur’s inherited patriotism devotion and bravery from his father.
33.What is the method of making vaccines?
vaccine is made by developing a weak form of bacteria or virus of a certain disease. This substance containing a weak form of the bacteria or virus causes slight disease and is used to protect people form that disease.
34.Write down Pasteur’s services in brewing?
He took up the study of brewing. He discovered a method to produce good beer. He wrote a book called “Etudes sur la Biere on brewing. It has been of great value in brewing industry ever since.