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Viral Diversity and Evolution Quiz

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Questions and Answers

What is a virus primarily composed of?

Cytoplasm and a cell membrane
Cell wall and chlorophyll
Organelles and a nucleus
Nucleic acid and a protein coat (correct)

What is the main characteristic of viruses in terms of cellular structure?

They have a nucleus and organelles
They have a rigid cell wall and chloroplasts
They have a cell membrane and cytoplasm
They are non-cellular (correct)

What is the role of the protective protein coat in a virus?

It helps the virus to move and replicate
It is called a capsid and surrounds the genetic material (correct)
It acts as a barrier against host immune responses
It provides energy for the virus

What is the significance of the spikes of protein found on some virus envelopes?

They aid in attachment and make the virus sensitive to chemical actions of disinfectants (C) Signup and view all the answers

What type of parasites are viruses?

Obligate Intracellular Parasites (B) Signup and view all the answers

Viruses have no ______

nucleus Signup and view all the answers

Viruses come in many different ______ and sizes

shapes Signup and view all the answers

Viruses are the smallest of all ______

microbes Signup and view all the answers

Viruses exist by hijacking the cellular machinery of another living thing to reproduce by injecting its genetic material into a ______ cell

host Signup and view all the answers

Viruses can be either naked (non-enveloped) or ______

enveloped Signup and view all the answers

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