Module 3 - Viral Infections

Question 1

What are Prions?

Answer 1

Are misfolded proteins. When a prions contacts a normally folded protein in induced the normal protein for assume the abnormal shape

This can lead to prion aggregation causing cellular malfunctions and eventual degeneration of the brain

Question 2

what is the structure of a virus

Answer 2

Viruses consist of nucleic acid enclosed in a cashed and that is further enclosed by an envelope

Viral glycoprotein’s on the envelope bind to specific receptor molecules on the surface of a host cell

Some viral envelopes are formed from the host cell’s plasma membrane as the viral capsized exit

Question 3

How does a virus replicate?

Answer 3

• Attachment of the virus to the susceptible host cell
• Entry of the virion or its nucleic acid
• Synthesis of virus nucleic acid and protein by cell metabolism as redirected by virus
• Assembly of capris and packaging of viral genomes into new irons
• Release of mature virions from host cell