Viruses Review

Front

What is a virus?

Back

A virus is a microscopic infectious agent that can only replicate inside the living cells of an organism.

Front

What are the two main types of viral structures?

Back

The two main types of viral structures are enveloped viruses and non-enveloped viruses.

Front

What is the function of a virus's capsid?

Back

The capsid protects the viral genetic material and helps the virus attach to host cells.

Front

What is viral genetic material made of?

Back

Viral genetic material can be made of DNA or RNA.

Front

What is the difference between lytic and lysogenic cycles?

Back

In the lytic cycle, the virus immediately replicates and destroys the host cell, while in the lysogenic cycle, the viral DNA integrates into the host's DNA and can remain dormant.

Front

What role do vaccines play in relation to viruses?

Back

Vaccines stimulate the immune system to recognize and fight specific viruses, providing immunity.

Front

What is an envelope in the context of viruses?

Back

An envelope is a lipid membrane that surrounds some viruses, derived from the host cell's membrane.

Front

How do viruses attach to host cells?

Back

Viruses attach to host cells using specific proteins on their surface that bind to receptors on the host cell.

Front

What is the purpose of viral replication?

Back

The purpose of viral replication is to produce new virus particles to infect additional host cells.

Front

What is a host cell?

Back

A host cell is a living cell that a virus infects to replicate and produce new viruses.