Discovery of viruses MDCAT Quiz: The Discovery of Viruses represents a landmark achievement in the realm of microbiology and molecular biology. Viruses were first recognized at the end of the 19th century, although scientists had long been aware of their presence. This discovery began with the work of Dmitri Ivanovsky in 1892. He was tasked with finding the cause of tobacco mosaic disease. He discovered that the disease was still transmissible even after passing the juice of infected plants through a fine filter that removed bacteria, indicating that there was something smaller than bacteria present. It was in 1898 when Martinus Beijerinck coined the term “virus” to refer to this infectious agent, and it further supported the concept of a new group of pathogens. However, it was not until the development of electron microscopy in the 1930s that scientists could observe virus particles and thereby understand their true nature. For MDCAT students, the discovery of viruses is critical for understanding their role in disease and their fundamental biological properties.
Test Your Knowledge with an MDCAT Quiz
An MDCAT Quiz on the Discovery of Viruses will help you test your knowledge of the historical milestones in virus research. The quiz covers important contributions by Ivanovsky, Beijerinck, and later researchers that helped uncover the nature of viruses. It will also address the techniques used in the identification of viruses, such as filtration and electron microscopy. Regular practice will ensure that you understand the importance of viral discovery and its impact on the study of microbiology.
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Free Flashcards for Quick Revision
Free Flashcards on the Discovery of Viruses with concise summaries of major historical events and discoveries, including work done by Ivanovsky, Beijerinck, and the coming of electron microscopy. These flashcards are perfect for rapid recall of significant dates, persons, and methods related to the discovery of viruses and are very useful for last-minute revision before an MDCAT exam.
Mastering the Discovery of Viruses is very crucial in understanding the origins and development of Virology, along with the impacts viruses can have on human health. Use our quizzes and flashcards to really cement your grasp of the material and guarantee yourself a great performance on the MCAT!
Who is credited with the discovery of viruses?
Dmitri Ivanovsky
Which virus was the first to be discovered?
Tobacco mosaic virus
What year did Dmitri Ivanovsky discover the tobacco mosaic virus?
1892
Which scientist confirmed the infectious nature of tobacco mosaic virus?
Martinus Beijerinck
What did Beijerinck call the infectious agent he discovered in 1898?
Contagium vivum fluidum
Which type of filter was used by Ivanovsky to study the tobacco mosaic virus?
Chamberland filter
What method helped prove viruses were smaller than bacteria?
Filtration
Which virus did Edward Jenner indirectly study through his smallpox vaccine work?
Cowpox virus
Which scientist developed the first electron microscope for observing viruses?
Ernst Ruska
What discovery did Wendell Stanley make about the tobacco mosaic virus in 1935?
It is made of RNA and protein
Which scientist coined the term "virus" for infectious agents?
Martinus Beijerinck
What was the first animal virus discovered?
Foot-and-mouth disease virus
What was the first human virus discovered?
Yellow fever virus
In what year was the yellow fever virus identified?
1901
Who discovered the yellow fever virus?
Walter Reed
Which scientist discovered the polio virus?
Karl Landsteiner
Who demonstrated that rabies is caused by a virus?
Louis Pasteur
What year did Louis Pasteur develop the rabies vaccine?
1885
Which scientist discovered the bacteriophage?
Frederick Twort
Who independently confirmed the discovery of bacteriophages?
Félix d'Hérelle
What type of virus did Twort and d'Hérelle discover?
Bacteriophage
Which scientist worked on crystallizing viruses?
Wendell Stanley
What does the crystallization of viruses prove?
Viruses are non-cellular
What was the first virus to be crystallized?
Tobacco mosaic virus
In what year was the first electron micrograph of a virus captured?
1939
Who took the first electron micrograph of a virus?
Ernst Ruska
What breakthrough did Wendell Stanley achieve in virology?
Isolated a pure virus
What was the first plant virus discovered?
Tobacco mosaic virus
Which virus's discovery led to the study of zoonotic transmission?
Yellow fever virus
What did Martinus Beijerinck's work demonstrate about viruses?
They require a host to replicate
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