“Find detailed questions and answers for Class 6 English Chapter 14, Pasteur and the Microbes.’ Perfect study guide for BOSEM students to understand Louis Pasteur’s life and contributions.”
Pasteur and the microbes’ questions and answers
The questions and answers for the chapter Pasteur and Microbes for class 6 English chapter 14 are given below.
I. Answer the following questions in a sentence each:
Q1. What are the causes of many of our diseases?
Ans: Microbes are the cause of many of our diseases.
Q2. What caused the disease among the silkworms?
Ans: Germs caused the disease among the silkworms.
Q3. What did Pasteur inject into the twenty-five sheep?
Ans: Pasteur injected a weak form of anthrax germs into the twenty-five sheep.
Q4. How can diseases like cholera, plague, etc. be prevented?
Ans: Diseases like cholera, plague, etc., can be prevented through inoculation.
Q5. What is hydrophobia?
Ans: Hydrophobia is an awful disease that comes from the bite of mad dogs.
Q6. How many times was the boy bitten by a mad dog?
Ans: The boy was bitten fourteen times by a mad dog.
Q7. What is the Pasteur Institute in Paris?
Ans: Pasteur Institute in Paris is a great centre for the study of microbes and germs.
II. Answer the following questions in about 20-25 words each:
Q1. What revolutionized the treatment and prevention of diseases?
Ans: Pasteur’s discovery of the prevention of deadly diseases like cholera, plague, etc., through inoculation revolutionized the treatment and prevention of diseases.
Q2. Why did people think that the boy would certainly die?
Ans: People thought that the boy would certainly die because, till then, no one had ever recovered from the disease caused by the bite of mad dogs.
Q3. How did Pasteur show that a person bitten by a mad dog could be saved?
Ans: Pasteur cured a boy who a mad dog bit by giving him several inoculations over a period of several days. Thus, Pasteur showed that a person bitten by a mad dog could be saved.
Q4. What is ‘Pasteurization’?
Ans: Pasteurization is the process of heating foodstuff for a certain length of time to kill bacteria in it in order to prevent the spoilage of food.
Q5. Name three important discoveries of Pasteur.
Ans:
i) Pasteur discovered microbes and that they cause many diseases.
ii) He discovered vaccines for many diseases, e.g., the anti-rabies vaccine.
iii) He also discovered the process of pasteurization.
Q6. In what way was Pasteur different from other contemporary scientists?
Ans: Pasteur was different from other contemporary scientists because he always tried to be perfect in whatever he did, unlike other scientists.
Q7. Why was Pasteur known as ‘the white knight of science’?
Ans: Pasteur was known as ‘the white knight of science’ because, in addition to being a great scientist, he was passionately concerned with the welfare of mankind.
III. Answer the following questions in about 50-60 words each:
Q1. Write how Pasteur saved the silk industry of France.
Ans: The silk industry of France was threatened by a disease that attacked the silkworms. After six years of hard work, Pasteur found that it was germs that caused the disease among the silkworms. He then found a way to kill these germs and thus saved the silk industry of France. Pasteur’s fight against the microbes began from this incident.
Q2. Write about Pasteur’s fight against the anthrax disease.
Ans: When anthrax attacked the cattle in France, Pasteur carried out an experiment with fifty sheep. He vaccinated only twenty-five of the fifty sheep by injecting a weak form of anthrax germs to develop antibodies in their body. Some days later, strong anthrax germs were injected into the bodies of the entire fifty. Just as he had expected, the twenty-five vaccinated sheep lived, and the other twenty-five caught the disease and died.
Q3. How did Pasteur save the nine-year-old boy?
Ans: A nine-year-old boy bitten 14 times by a mad dog was brought to Pasteur. Until then, there was no cure for the disease caused by the bite of mad dogs. He tried to cure the disease by inoculation. As the boy had been bitten many times, he gave several inoculations to the boy over a period of several days. The treatment ended, and the boy was saved.
Q4. How is ‘pasteurization’ a common household vocabulary today?
Ans: Pasteurization is a process meant for killing bacteria present in foodstuffs to prevent spoilage of food. This technique is used at every home to prevent milk from turning sour. Today, it is widely applied in food processing. As this process has been very easy and helpful in the kitchen, the term ‘pasteurization’ has become a common household vocabulary.
IV. Match the group of words in column A with those in column B to make a complete sentence.
Answer:
| Column A | Column B |
|---|---|
| Pasteur injected strong fluids with anthrax germs | to all the fifty sheep. |
| Pasteur showed that diseases like cholera and plague could be | prevented through inoculation. |
| The boy bitten by the mad dog | was given inoculation for several days. |
| Pasteurisation is a common vocabulary | among housewives today. |
| Edward Jenner | did not know about microbes. |
V. Write true or false in the following statements.
- Microbe are present all around us (T)\
- Pasteur injected a strong form of anthrax germs to develop antibodies in the animals. (F)
- Hydrophobia is a disease that affects silk industry. (F)
- Pasteur proved that milk went sour because of bacteria present in milk. (T)
- Pasteur was a scientist who was deeply concerned about the welfare of human beings. (T)
Vocabulary
1. Fill in the blanks with the correct words selected from those given in the box.
Answers:
- A hundred years ago doctors had no idea about microbes.
- Pasteur found that a wound festered due to the action of the germs.
- When the weak anthrax germs were injected, they developed antibodies in the sheep.
- Hydrophobia is caused by the bite of a mad dog.
- The discovery of inoculation revolutionised the methods of treatment.
- Pasteurisation is the process of killing bacteria through heat treatment.
- We are indebted to Pasteur for discovering the treatment of diseases through inoculation.
- Irabot is a legend in Manipur.
2. Match the words in column A with the meaning in column B
Answer:
| Column A | Column B |
|---|---|
| Festered | Became septic |
| Revolutionized | Brought great change |
| Awful | Terrible |
| Innumerable | So many that counting is not possible |
| Recovered | Got well from sickness |
Grammar
1. Look at the following sentence
Use the past participle forms of the words in the box as adjectives and fill in the following sentences to make them meaningful:
| Break | Weaken |
| Devote | Prove |
| Pasteurise |
Answer:
- It is a proven fact that germs cause disease.
- Put the pasteurised milk in a bottle.
- I don’t want to sit on a broken stool.
- It will be easy to kill the weakened germs.
- Tomba is a devoted husband.
Composition
From your reading of the lesson, write a few sentences about what kind of man Pasteur was.
Answer:
Louis Pasteur was a hardworking and passionate scientist. He believed in helping people and devoted his life to fighting diseases. One of his greatest achievements was the discovery of vaccines, which helped protect people from harmful germs and deadly illnesses. Pasteur was also the founder of pasteurization, a process that makes milk and other foods safer to consume. His discoveries changed the world of medicine forever, saving countless lives and improving the health of millions. He was not just a scientist but also a true humanitarian who worked for the well-being of mankind.
