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Animal diseases - class-X

Description: animal diseases
Number of Questions: 27
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Tags: biology keeping diseases away economic importance of bacteria and fungi
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Anthrax can be prevented and controlled only by destroying contaminated fodder by burning ____________.

  1. True

  2. False

  3. Data insufficient

  4. Never


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.

  1. Proteus morganii

  2. Borrelia bacteria

  3. Bacillus anthracis

  4. Trichinella spiralis


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 ___________.

  1. Anthrax

  2. Cholera

  3. Plague

  4. Ebola

  5. All of the above


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 ____________________.

  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


Correct Option: C

Which of the following are the diseases caused by bacteria?

  1. Cancer

  2. Anthrax

  3. Hepatitis

  4. None of the above


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? 

  1. Lazaro Spailanzani

  2. Louis Pasteur

  3. Joseph Lister

  4. Francesco Redi


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 

  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


Correct Option: A

Symptoms of Anthrax are __________________.

  1. Sudden rise in body temperature (104 - 10SF) & Loss of appetite i.e. off-feed

  2. Severe depression or dullness & Suspended rumination

  3. Increased respiration and heart rate & Bloat or tympany

  4. All of the above


Correct Option: D
Explanation:

Explanation: Symptoms of Anthrax include all of the above apart from Bleeding from natural openings like anus, nostrils, vulva etc. Sudden death in peracute cases. Dyspnoea - difficult breathing & Dysentery or diarrhoea.

The Anthrax disease is caused by

  1. Virus

  2. Bacteria

  3. Protozoa

  4. Helminthes


Correct Option: B

'Black death' is related with

  1. Plague

  2. Cancer

  3. Tuberculosis

  4. Measles


Correct Option: A
Explanation:

The plague disease is caused by Yersinia pestis (commonly present) in populations of fleas carried by ground rodents, including marmots, in various areas including Central Asia, Kurdistan, Western Asia, Northern India and Uganda. The 'Black Death' was one of the most devastating pandemics in human history, resulting in the deaths of an estimated 75 to 200 million people and peaking in Europe in the years 134653. Although there were several competing theories as to the etiology of the Black Death, analysis of DNA from victims in northern and southern Europe published in 2010 and 2011 indicates that the pathogen responsible was the Yersinia pestis bacterium, probably causing several forms of plague.

Which one of the following causes plague?

  1. Salmonella typhimurim

  2. Trichinella spiralis

  3. Yersinia pestis

  4. Leishmania donovani


Correct Option: C
Explanation:

Plague is a deadly infectious disease that is caused by the enterobacteria, Yersinia pestis. Contrary to popular belief, rats did not directly start the spread of the bubonic plague. It is mainly a disease in the fleas (Xenopsylla cheopis), that infested the rats, making the rats themselves the first victims of the plague. Infection in a human occurs, when a person is bitten by a flea that has been infected by biting a rodent that itself has been infected by the bite of a flea carrying the disease. The bacteria multiply inside the flea, sticking together to form a plug that blocks its stomach and causes it to starve. The flea then bites a host and continues to feed, even though it cannot quell its hunger, and consequently the flea vomits blood tainted with the bacteria back into the bite wound.

Biological name of insect (vector) carrying the plague

  1. Xenopsylla cheopis

  2. Anopheles mosquito

  3. Bacillus pestis

  4. Pediculus humanus


Correct Option: A
Explanation:

Plague is a deadly infectious disease that is caused by the enterobacteria Yersinia pestis. It is mainly a disease in the fleas, Xenopsylla cheopis, that infested the rats, making the rats themselves the first victims of the plague.
Therefore, the correct answer is option A.

'Plague' is transmitted by

  1. Housefly

  2. Tsetse fly

  3. Rat flea

  4. Mosquito


Correct Option: C
Explanation:

Plague is a deadly infectious disease, that is caused by the enterobacteria Yersinia pestis. Contrary to popular belief, rats did not directly start the spread of the bubonic plague. It is mainly a disease in the fleas (Xenopsylla cheopis), that infested the rats, making the rats themselves the first victims of the plague. Infection in a human occurs, when a person is bitten by a flea that has been infected by biting a rodent that itself has been infected by the bite of a flea carrying the disease. The bacteria multiply inside the flea, sticking together to form a plug that blocks its stomach and causes it to starve. The flea then bites a host and continues to feed, even though it cannot quell its hunger, and consequently the flea vomits blood tainted with the bacteria back into the bite wound.

Which of the following is a bacterial disease?

  1. Anthrax

  2. Rinderpest

  3. Tick fever

  4. Coccidiosis


Correct Option: A
Explanation:

Anthrax is a zoonotic (the disease that is normally present in animals and can be transmitted to humans through animals) disease caused by the gram-positive aerobic bacterium called Bacillus anthracis.

  • Symptoms depend on the route of infection. They can range from a skin ulcer with a dark scab to difficulty breathing.

  • Hence anthrax is a bacterial disease. So, the correct answer is 'Anthrax'.

Anthrax is due to a

  1. Virus

  2. Bacterium

  3. Fungus

  4. Protozoan


Correct Option: B
Explanation:

Anthrax is an infectious disease caused by the bacterium Bacillus anthracis. It usually affects  ruminants like goats, cattle, sheep, horses. However, it is also seen in humans. Symptoms include sore throat, fever, fatigue, muscle aches, nausea, shortness of breath.

Thus, the correct answer is 'Bacterium.'

The nurse is teaching a disaster preparedness class to healthcare workers. Which of the following infectious diseases is suspected as a probable biological weapon?

  1. Chicken pox

  2. Botulism

  3. Flu

  4. Cholera


Correct Option: B

All of the following are key features of microbial agents that are used as bioweapons except

  1. Environmental stability

  2. High morbidity and mortality rates

  3. Lack of readily available antibiotic treatment

  4. Lack of universally available and effective vaccine


Correct Option: A
Explanation:
Microbial agents when used as bio weapons disturb environmental stability as they cause disease and death of organisms resulting in breaking of food chain, spreading of an epidemic etc
So, the correct answer is 'Environmental stability'


Weapons of mass destruction include ___________.

  1. Nuclear, chemical, biological

  2. Nuclear, conventional, biological

  3. Nuclear, ballistic, biological

  4. All of the above


Correct Option: A
Explanation:

weapon of mass destruction (WMD) is a nuclear, radiological, chemical, biological, or any other weapon that can kill and bring significant harm to numerous humans or cause great damage to human-made structures.

Bioweapons are ________________.

  1. Easy to carry

  2. Stored

  3. Launched

  4. All of the above


Correct Option: D
Explanation:

$\rightarrow$ Bioweapon have small size so its easy to carry.


$\rightarrow$ its easy to store.

$\rightarrow$ its difficult to detect and easy to use.

Contaminated feed is the major source of infection in case of ______________.

  1. Rinderpest

  2. Ascaris

  3. Anthrax

  4. All of the above


Correct Option: D
Explanation:
Rinderpest virus is found in expired air and is transmitted primarily by inhalation of expired air contaminated by infected dropletsAscaris infection occurs by eating food or drink contaminated with Ascaris eggs from feces. When anthrax spores are ingested, inhaled or enter the body through skin abrasions or cuts and food, it causes the disease.
So, the answer is All of the above.

Potential pathogens for bioweapons are _________________.

  1. Bacillus anthracis

  2. Yersinia pestis

  3. Vibro cholerae

  4. All of these


Correct Option: D
Explanation:

Biowar is the use of highly infectious pathogens, their spores and toxins as agents of biological weapons against humans, crops and animals of enemy country. The agent is kept in a social container that keeps it in active/virulent state during delivery by missile or aircraft. Spray and power are two common forms in which the bioweapon agent is delivered. Potential pathogens for bioweapons agent is delivered. Potential pathogens for bioweapons are Bacillus anthracis, Vibro cholera, small pox virus Pasteurella Yersinia pestis, Botulinum toxin, etc.

Antibiotics useful in the treatment of anthrax is __________.

  1. Penicillin

  2. Chloramphernicol

  3. Ciprofloxacin

  4. Erythromycin


Correct Option: C
Explanation:

Anthrax is treated with the antibiotic ciproflaxacin that is very effective in chronic cases.

According to the World Health Organisation, the disease which cause the death of the largest population today is

  1. AIDS

  2. Tuberculosis

  3. Malaria

  4. Ebola


Correct Option: D
Explanation:

Ebola virus disease is a disease of humans and other primates caused by Ebola viruses. There is currently no licensed treatment or vaccine for Ebola virus disease, although potential new vaccines and drug therapies are being developed and tested. 

Anthrax of sheep is caused by bacteria.

  1. True

  2. False


Correct Option: A
Explanation:

Anthrax refers to a contagious disease that is caused by a bacterium called the Bacillus anthracis. The disease mainly occurs in domestic and wild animals such as goats, cow, sheep, and camels. The infection is transmitted through spores of the bacteria. Hence, anthrax in sheep is caused by bacteria.

Blood mixed foamy discharge occurs through natural orifices of the animal. It is a symptom of disease :

  1. Rinderpest

  2. Foot and mouth disease

  3. Anthrax

  4. Both A and B


Correct Option: C
Explanation:

In acute cases, Anthrax causes increased resoiration accompanied by blood mixed foamy discharge from the natural orifices like mouth, nose and anus.

The following microbe is used as a biological weapon recently

  1. Phytophthora infestans

  2. Bacillus anthracis

  3. Hibiscus virus

  4. all of these


Correct Option: B
Explanation:
Bacillus anthracis is the bacteria that causes anthrax. In 1991 Gulf War it is used by Iraq. They purchased anthrax spores from the US.
So, the correct option is 'Bacillus anthracis'

An animal disease that can be tranferred to humans from the diseased animal is______.

  1. Rinderpest

  2. Anthrax

  3. Mastitis

  4. Foot and mouth disease


Correct Option: B
Explanation:

Rinderpest is a cattle plague disease that affects only animals.

Mastitis is the inflammation of breast tissue that affects female breasts.
Foot and mouth disease is a contagious viral infection common in young children characterized by a sore mouth. Anthrax is caused by the bacteria bacillus anthracis and it is spread by contact with the bacterium's spores, which appear in infected animals.

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