Question 1

Which of the following is NOT considered a microorganism according to the study materials?

Accepted Answer

Plants

Question 2

What is the primary reason microorganisms are studied in relation to ecosystems?

Accepted Answer

They are primary producers and decomposers, cycling nutrients and energy.

Question 3

Which scientist established the system of naming organisms (nomenclature) used worldwide today?

Accepted Answer

Carl Linnaeus

Question 4

In binomial nomenclature, which of the following is the correct way to write the scientific name for humans?

Accepted Answer

$$Homo sapiens$$

Question 5

Which domain of life includes organisms that are prokaryotic and have peptidoglycan in their cell walls?

Accepted Answer

Bacteria

Question 6

Which of the following statements about viruses is TRUE?

Accepted Answer

Viruses are acellular and require a host cell for reproduction.

Question 7

Which experiment provided final evidence against spontaneous generation and supported biogenesis?

Accepted Answer

Louis Pasteur’s S-shaped flask experiment

Question 8

Which of the following is a correct description of the metabolism of fungi?

Accepted Answer

Organic chemicals as saprophytes

Question 9

Which scientist is credited with inventing a chemical disinfectant for surgical tools, advancing the Germ Theory of Disease?

Accepted Answer

Joseph Lister

Question 10

Which of the following is a unique feature of Archaea compared to Bacteria?

Accepted Answer

Ability to live in extreme environments

Question 11

Which of the following is an example of a biogeochemical cycle involving bacteria?

Accepted Answer

Bacteria recycling sulfur in the environment

Question 12

Which scientist’s work began the Golden Age of Microbiology and contributed to the Germ Theory of Disease?

Accepted Answer

Louis Pasteur

Question 13

Which of the following is a correct match between a microbe and its role in food production?

Accepted Answer

Bacteria are responsible for the conversion of sugar to alcohol in fermentation.

Question 14

Which of the following is a correct statement about the cell structure of protozoa?

Accepted Answer

Protozoa lack cell walls.

Question 15

Which scientist first described live microorganisms using a microscope?

Accepted Answer

Antoni van Leeuwenhoek

Question 16

Which of the following is a correct application of Koch’s postulates?

Accepted Answer

Demonstrating that a specific bacterium causes a specific disease outbreak

Question 17

Which of the following is TRUE about the reproduction of algae?

Accepted Answer

Algae can reproduce both asexually (fragmentation) and sexually.

Question 18

Which of the following is a correct example of genetic engineering using microbes?

Accepted Answer

Using DNA to have microbes produce proteins for vaccines

Question 19

Which of the following is a correct statement about the cell theory?

Accepted Answer

All living things are composed of cells and come from pre-existing cells.

Question 20

Which of the following is a correct description of the role of microbes in bioremediation?

Accepted Answer

Microbes degrade organic matter and detoxify pollutants.

Study Notes: The Microbial World and You (BSC 242, Ch. 1)

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