Tag: bacteria

Questions Related to bacteria

Which of the following disease is 100% fatal and mode of transmission is through infected animals?

biology diseases and immunity pathogen and their mode of transmission economic importance of bacteria and fungi bacteria five kingdoms of living organisms classification of microbes infectious diseases

  1. AIDS

  2. Rabies

  3. Tetanus

  4. Hepatitis-B

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Correct Option: B
Explanation:

AIDS is transmitted sexually or through blood transfusion or from mother to fetus.
Tetanus is not transmitted from person to person or from animal to person.
Hepatitis-B is transmitted through blood and infected bodily fluids.
Rabies is a fatal viral disease of mammals, most often transmitted through the bite of a rabid animal.
Therefore, the correct answer is option b.

Which one of the following is an example of zoonosis disease?

biology diseases and immunity pathogen and their mode of transmission economic importance of bacteria and fungi bacteria five kingdoms of living organisms classification of microbes infectious diseases

  1. Measles

  2. Diptheria

  3. Leprosy

  4. Rabies

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Correct Option: D
Explanation:

A zoonotic disease is a disease that is transmitted from animals to humans. They can be caused by viruses, bacteria, parasites and fungi. Measles is a viral disease in humans. Diptheria is caused by bacterium Corynebacterium diptheriae. Leprosy is chronic infection caused by bacteria Mycobacterium leprae.
Rabies is one such zoonotic disease caused by the rabies virus of the genus Lyssavirus.
Thus, the correct answer is option (D), 'Rabies'.

Which of the following disease is now considered nearly eradicated from India?

biology economic importance of bacteria and fungi pathogen and their mode of transmission diseases and immunity bacteria five kingdoms of living organisms biodiversity and need of classification

  1. Plague

  2. Kala azar

  3. Small pox

  4. Influenza

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Correct Option: C
Explanation:

Smallpox is a very serious illness caused by a virus, called the variolavirus. Smallpox gets its name from the pus-filled blisters (or pocks), that form during the illness. Small pox is an acute highly communicable disease. It is caused by virus named variolavirus. Now it is nearly eradicated from India.

Anthrax can be prevented and controlled only by destroying contaminated fodder by burning ____________.

animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

  1. True

  2. False

  3. Data insufficient

  4. Never

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Correct Option: B
Explanation:

Explanation: Anthrax can be prevented and controlled by destroying contaminated fodder by burning. But not completely. Anthrax spore vaccine @ 1 ml subcut every year before onset of monsoon in areas where anthrax outbreaks are common.

Name the bacteria that cause anthrax disease in animals.

animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

  1. Proteus morganii

  2. Borrelia bacteria

  3. Bacillus anthracis

  4. Trichinella spiralis

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Correct Option: C
Explanation:
Anthrax is an infection that is caused by the bacteria Bacillus anthracis. These bacteria form spores that are hard-shelled, dormant versions of the bacteria. Spores are the form of the bacteria that cause infection. They can survive in the soil for many decades. Anthrax most commonly occurs in animals such as pigs, cattle, horses, and goats, but it can also infect people.
So the correct option is  'Bacillus anthrcis'

Example of bioweapon ___________.

animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

  1. Anthrax

  2. Cholera

  3. Plague

  4. Ebola

  5. All of the above

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Correct Option: E
Explanation:

Example of Bioweapon_


(1) Anthrax:-  It is caused by a spore-forming bacterium. It mainly affects animals. Humans can become infected through contact with an infected animal or by inhaling spores.

(2) Cholera:- A bacteria disease causing severe diarrhea and dehydration usually spread in water.

(3) Plague:-  The bubonic plague is caused by the disease yersinia pestis. It can spread through contact with infected fleas.

(4) Ebola:-   A virus that causes severe bleeding, organ failure and can lead to death. The human may spread the virus to other humans through contact with bodily fluids such as blood.

Anthrax is transmitted through ____________________.

animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

  1. It usually spreads through ingestion of contaminated feed and water.

  2. Occurs by inhalation and biling flies

  3. Both A and B

  4. None of the above

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Correct Option: C

Which of the following are the diseases caused by bacteria?

animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

  1. Cancer

  2. Anthrax

  3. Hepatitis

  4. None of the above

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Correct Option: B
Explanation:

Anthrax is an infectious disease caused by a bacterium called Bacillus anthracis, which can change into spores that can last for a long time in the environment before germinating. Various other diseases caused by bacteria are relapsing fever, bovine tuberculosis etc. 

Which famous biologist attenuated. the germs of anthrax disease by heating them and inoculated sheep with them, thus making the sheep resistant to anthrax? 

animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

  1. Lazaro Spailanzani

  2. Louis Pasteur

  3. Joseph Lister

  4. Francesco Redi

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Correct Option: B
Explanation:

Pasteur discovered that growing anthrax bacilli at about 42 °C made them unable to produce spores.  . His laboratory notebooks, now  show that he actually used heat and potassium dichromate similar to Toussaint's method, followed by inoculation of the tested animals with the weakened innoculum. The experiment, conducted  by him at Pouilly-le-Fort on sheep, goats and cows, was successful.

So, the correct answer is B. (Louis pasteur )

Choose the incorrect statement w.r.t Bioweapons 

animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

  1. they are low cost weapons

  2. they cause more casualities than conventional weapons

  3. they are extremely difficult to detect

  4. Bacterium vibrio cholera created letter scare in 2001

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Correct Option: A