Harmful Microorganisms

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Harmful Microorganisms: Overview

This topic covers concepts, such as, Microbial Diseases, Pathogens, Control and Prevention of Mosquito Breeding & Anthrax etc.

Important Questions on Harmful Microorganisms

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Dysentery is a bacterial disease.

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Give the scientific name of the causative agent of dysentery.

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Name the causative microorganism of animal disease Anthrax?

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Several microorganisms cause diseases in plants and reduce yield. Which of the following plant diseases is incorrectly matched with its causal microorganism? 

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Hepatitis A is caused by a bacterium.

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List few symptoms of hepatitis A.

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Which among the following is the causative agent of hepatitis A?

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A virus causes a very dangerous disease called AIDS (Acquired Immune Deficiency Syndrome). Find out what happens to a person suffering from this disease.

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Food gets decayed mainly due to the _____ (decomposition/reproduction) activities of bacteria, fungi, etc.

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Aspergillosis is caused by fungi or a virus.

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Unscramble the given word to make meaningful word:
OMBCMUNCAEIL

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Based on the ‘types of diseases’, select the odd one out;

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Usha’s grandfather has diabetes. Usha thinks that if she touches her grandfather she may also get infected with the disease. Is this true?

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State True or False:

Diseases like diabetes, hypertension and cancer can spread through direct contact with the person suffering from these diseases.

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Choose the correct option.

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Question Image 

This diagram shows how dengue virus infect a person. What type of disease is dengue?

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Identify the odd one out from the following, based on the micro-organism that cause it.

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An isolation ward in a hospital is a ward to treat some patients separately. What kind of disease are these patients likely to suffer from?

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Who discovered the bacteria Bacillus Anthracis?

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Identify the diseases caused by Protozoans.