10 Questions
Which technique was used to discover viruses?
Bacterial filters
When were viruses first observed using electron microscopy?
1935
What is the composition of viruses?
Single nucleic acid and protein coat
What is the function of spikes in the envelope of some viruses?
Attachment, identification, bridging/linking cells together
What is the characteristic of viruses as obligate intracellular parasites?
They require host cells' machinery to produce more viruses
Which type of nucleic acid can be found in viruses?
Both DNA and RNA
What is the function of the protein coat in viruses?
To protect the nucleic acid from enzymes
What is the composition of the envelope in some viruses?
Lipids, proteins, and carbohydrates
What is the size range of viruses?
20-1000 nm
What is the main characteristic of viruses as obligate intracellular parasites?
They require host cells' machinery to produce more viruses
Test your knowledge on the discovery and characteristics of viruses, including their small size, nucleic acid composition, and protein coat. Learn about the Latin origins of the word "virus" and the first observation of viruses using electron microscopy in 1935.
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