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Test: Microorganisms Friend & Foe- 1 - UPSC MCQ


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10 Questions MCQ Test Science & Technology for UPSC CSE - Test: Microorganisms Friend & Foe- 1

Test: Microorganisms Friend & Foe- 1 for UPSC 2024 is part of Science & Technology for UPSC CSE preparation. The Test: Microorganisms Friend & Foe- 1 questions and answers have been prepared according to the UPSC exam syllabus.The Test: Microorganisms Friend & Foe- 1 MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Microorganisms Friend & Foe- 1 below.
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Test: Microorganisms Friend & Foe- 1 - Question 1

The disease caused by protozoa is

Test: Microorganisms Friend & Foe- 1 - Question 2

Which of the following disease is spread due to bacteria?

Test: Microorganisms Friend & Foe- 1 - Question 3

Partial sterilization of a product such as milk at a high temperature is known as:

Detailed Solution for Test: Microorganisms Friend & Foe- 1 - Question 3

Pasteurization is a process in which milk is heated to about 70oC for 15 to 30 seconds and then suddenly chilled and stored. By doing so, it prevents the growth of microbes. This process was discovered by Louis Pasteur and hence is called pasteurization.

Test: Microorganisms Friend & Foe- 1 - Question 4

Living organisms which are invisible to the naked eye are called _________ .

Detailed Solution for Test: Microorganisms Friend & Foe- 1 - Question 4
  • Living organisms which are invisible to the naked eye are called microorganisms. Microorganisms are too small to be seen with our naked eyes. They can be seen only through a device known as a microscope.
Test: Microorganisms Friend & Foe- 1 - Question 5

The process by which amount of nitrogen remains the same in the atmosphere is known as

Test: Microorganisms Friend & Foe- 1 - Question 6

Vaccines are made up of:

Detailed Solution for Test: Microorganisms Friend & Foe- 1 - Question 6

A vaccine is a biological preparation containing weakened or dead microbes. It is introduced into a healthy person’s body so that it can produce antibodies against the disease-causing microbes. Vaccines can be injected or administered orally.

Test: Microorganisms Friend & Foe- 1 - Question 7

The bacterium present in curd is:

Detailed Solution for Test: Microorganisms Friend & Foe- 1 - Question 7

Lactobacillus is the microorganism present in curd. This bacterium converts milk into curd at 30 to 40oC.

Test: Microorganisms Friend & Foe- 1 - Question 8

While baking cakes, yeast reproduces rapidly and produces ___ gas.

Detailed Solution for Test: Microorganisms Friend & Foe- 1 - Question 8

While baking cakes, yeast reproduces rapidly and produces carbon dioxide gas. This gas is responsible for the spongy texture of cake.

Test: Microorganisms Friend & Foe- 1 - Question 9

______ is used for the production of alcohol and wine.

Detailed Solution for Test: Microorganisms Friend & Foe- 1 - Question 9

Yeast is used for the production of alcohol and wine by the process of fermentation.

Test: Microorganisms Friend & Foe- 1 - Question 10

Which of the following diseases can be cured using antibiotics?

Detailed Solution for Test: Microorganisms Friend & Foe- 1 - Question 10

Antibiotics are the medicines that kill or stop the growth of disease-causing microorganisms. Streptomycin, tetracycline and erythromycin are some of the commonly known antibiotics which are made from fungi and bacteria. Antibiotics are mostly effective against bacterial diseases. Among the diseases given, only typhoid is caused by bacteria, i.e., Salmonella typhi, whereas all the other diseases are caused by protozoa or viruses.

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