Tag: harmful microorganisms

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Questions Related to harmful microorganisms

Multiple choice classification of microbes living world and classification of microbes useful and harmful microbes harmful microorganisms biology

Which one of the following is not a bacterial disease?

  1. Cholera

  2. Tuberculosis

  3. Anthrax

  4. Influenza
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Causative agent of cholera is Vibrio cholerae. Vibrio cholerae is a bacterium. 
Tuberculosis is caused by bacteria, Mycobacterium tuberculosis.
Anthrax is caused by bacteria Bacillus anthracis. 
Influenza is caused by influenza virus. 

Multiple choice classification of microbes living world and classification of microbes useful and harmful microbes harmful microorganisms biology

Which of the following is a pandemic disease?

  1. Filariasis

  2. Hepatitis

  3. Influenza

  4. Amoebic dysentery
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pandemic is an epidemic of infectious disease that spreads through human populations across a large region; for instance multiple continents, or even worldwide. The World Health Organization (WHO) has a six-stage classification that describes the process by which a novel influenza virus moves from the first few infections in humans through to a pandemic. This starts with the virus mostly infecting animals, with a few cases where animals infect people, then moves through the stage where the virus begins to spread directly between people and ends with a pandemic when infections from the new virus have spread worldwide and it will be out of control until we stop it. A disease or condition is not a pandemic merely because it is widespread or kills many people; it must also be infectious. 

Multiple choice classification of microbes living world and classification of microbes useful and harmful microbes harmful microorganisms biology

In which of the following diseases is the use of aspirin prohibited?

  1. Typhoid

  2. Dengue

  3. Malaria

  4. Viral fever
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Use of aspirin during dengue fever is not recommended owing to increased bleeding tendency. Aspirin has an antiplatelet effect by inhibiting the production of thromboxane, which under normal circumstances binds platelet molecules together to create a patch over damage of the walls within blood vessels. Hence drugs such as aspirin and ibuprofen should be avoided as they may increase the risk of haemorrhage. 

Therefore, the correct answer is option B.

Multiple choice classification of microbes living world and classification of microbes useful and harmful microbes harmful microorganisms biology

Bacillus haemophilus causes

  1. Influenza

  2. Pneumonia

  3. A form of meningitis in young children

  4. Whooping cough
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bacillus haemophilus or Bacillus influenzae is a Gram-negative, facultatively anaerobic bacteria that causes influenza disease. It was first described by Richard Pfeiffer during an influenza pandemic. It is usually present in the upper respiratory tract and causes otitis media, epiglottitis, and meningitis.

Thus, the correct answer is 'Influenza.'

Multiple choice biology useful and harmful microbes mycorrhiza classification of fungi harmful microorganisms

Sclerotia extract of .................. fungus produce a powerful hallucinogenic drug LSD and drug ergotine.

  1. Claviceps purpurea

  2. Aspergillus flavus

  3. Agaricus

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Claviceps purpurea is an ergot fungus that grows on the ears of rye and related cereal and forae plants. Consumption of grains or seeds contaminated with the survival structure of this fungus, the ergot sclerotium, can cause ergotism in humans and other mammals. Ergotine is a powerful astringent alkaloid extracted from ergot as a brown, amorphous, bitter substance. It produces hallucinating effect on humans. Thus, the correct answer is option A.

Multiple choice biology useful and harmful microbes mycorrhiza classification of fungi harmful microorganisms

Medicinal importance alkaloids extracted from Claviceps are  

  1. Ergometrine

  2. Ergotoxine

  3. Ergotamine

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ergometrine, Ergotoxine, Ergotamine all are alkaloids of medicinal importance extracted from Claviceps. Claviceps purpurea is an ergot fungus that grows on the ears of rye and related cereal and forae plants. Consumption of grains or seeds contaminated with the survival structure of this fungus, the ergot sclerotium, can cause ergotism in humans and other mammals. Ergotine is a powerful astringent alkaloid extracted from ergot as a brown, amorphous, bitter substance. It produces hallucinating effect on humans.

Thus, the correct answer is option D.