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Science Practice Quiz 237
10 questions · 12 minutes
12:00
Q1.What type of microorganisms are shown in Fig. 2.7?
Explanation: Fig. 2.7 shows nitrogen-fixing cyanobacteria (blue-green algae), as mentioned in the source text.
Q2.What is a harmful effect of some microorganisms?
Explanation: Some microorganisms cause diseases in human beings, plants, and animals, as mentioned in the source text.
Q3.What term is used for microorganisms that cause disease?
Explanation: Microorganisms causing disease are called pathogens.
Q4.What is the mode of transmission of the disease Tuberculosis?
Explanation: According to Table 2.1, Tuberculosis is caused by a bacterium and its mode of transmission is Air.
Q5.Who discovered the bacterium that causes anthrax disease in 1876?
Explanation: Robert Köch discovered the bacterium (Bacillus anthracis) which causes anthrax disease in 1876.
Q6.What is the preventive measure for the disease Malaria?
Explanation: According to Table 2.1, the preventive measure for Malaria is to use mosquito net and repellents, and control breeding of mosquitoes.
Q7.What type of microorganism causes the disease Cholera?
Explanation: Cholera is caused by a bacterium.
Q8.What is the mode of transmission of the disease Hepatitis A?
Explanation: According to Table 2.1, the mode of transmission of Hepatitis A is Water.
Q9.What is the cause of Foot and mouth disease of cattle?
Explanation: Foot and mouth disease of cattle is caused by a virus.
Q10.What condition can result from eating food spoiled by microorganisms?
Explanation: Food poisoning could be due to the consumption of food spoilt by some microorganisms.
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