WorksheetsMicrobiology 101: Chapter 1
Total questions: 20
Worksheet time: 9mins
According to the content, which came first: microbes or chickens?
Microbes
Chickens
Both appeared at the same time
Neither, they evolved separately
Which of the following is classified as an acellular microorganism?
Prion
Bacterium
Eukaryote
Helminth
What is the main difference between cellular and acellular microorganisms as shown in the diagram?
Cellular microorganisms have cells, while acellular microorganisms do not.
Acellular microorganisms are always larger than cellular ones.
Cellular microorganisms cannot reproduce.
Acellular microorganisms contain a nucleus.
Which of the following is an example of a harmful effect of microbes mentioned in the material?
Bioremediation
Pathogens causing infectious disease
Genetic engineering
Biotechnology
What was the purpose of boiling the broth in Pasteur's experiment?
To sterilize it and kill any existing microbes
To add nutrients for microbial growth
To change the color of the broth
To evaporate the liquid
Explain the significance of Antoni van Leeuwenhoek’s contributions to science and how his work is still relevant today.
Proposed that life arose from nonliving material
He made 50 years of observations and detailed reports of the micro-world
Hypothesized that microorganisms are responsible for disease, an idea known as germ theory
He developed simple staining techniques
What conclusion can be drawn from Pasteur’s experiment when the flask was tilted and the broth contacted the neck of the flask?
Microbes entered the broth and began to replicate
The broth remained sterile indefinitely
The broth evaporated quickly
The experiment failed to show any change
What term did Antoni van Leeuwenhoek use to describe the tiny organisms he observed under his microscope?
Microbes
Animalcules
Bacteria
Protozoa
Who settled the abiogenesis vs. biogenesis debate?
Antonie van Leeuwenhoek
John T. Needham
Louis Pasteur
Spallanzani
Who is not part of the Antiseptic Six?
Joseph Lister
Ignaz Semmelweis
Florence Nightingale
Robert Koch
Who is credited with the invention of the Petri dish, as shown in the image?
Julius Richard
Louis Pasteur
John Snow
Edward Jenner
What domain are we a part of?
(a)
Why is it important to reisolate the suspected pathogen and show it is the same as the original in Koch's postulates?
To confirm the pathogen can be stained.
To ensure the pathogen is not a contaminant and is responsible for the disease.
To test the effectiveness of antibiotics.
To observe the pathogen's color.
What is the purpose of streaking an agar plate with a sample from a diseased animal in Koch's postulates?
To observe the animal's behavior.
To grow colonies of the suspected pathogen in pure culture.
To test the animal's immune response.
To stain the pathogen for microscopy.
Which step in Koch's postulates involves using experimental animals?
Observing blood/tissue under the microscope.
Growing the suspected pathogen in pure culture.
Inoculating healthy animals with cells of the suspected pathogen.
Streaking agar plates with samples.
Microbes are
(a)
3.Which are the three currently accepted domains?
Archaea, Bacteria, and Eukarya
Archaea, Prokaryota, and Eukaryota
Bacteria, Prokaryota, and Eukarya
Bacteria, Fungi, and Protista
Willow saw this rod-shaped organism under the microscope. With further tests, Willow noticed that the organism was single-celled and did not contain a nucleus. Which of these did Willow conclude was the best way to classify this organism?
(a)
What is the correct order of biological taxa?
Kingdom, Domain, Phylum, Class, Order, Family, Genus, Species
Domain, Kingdom, Phylum, Class, Family, Order, Genus, Species
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Domain, Kingdom, Genus, Class, Family, Order, Phylum, Species
Life is more like a web than a tree because genes can travel
(a)
