Viruses & Prions

Question 1

A virus in the extracellular state (not in a host cell) is called what?

Answer 1

Viroid

Question 2

Extracellular viruses have a protein coat called a ____ surrounding nucleic acid

Answer 2

Capsid

Question 3

Explain what happens to a virus in the intracellular state

Answer 3

Capsid is removed, the virus exists as just nucleic acid

Question 4

Name the three basic shapes of viruses

Answer 4

1. Helical
2. Polyhedral
3. Complex

Question 5

This structure is acquired from the host cell during viral replication or release. It is composed of a phospholipid bilayer and proteins

Answer 5

The viral envelope

Question 6

What are capsids made of?

Answer 6

Protein

Question 7

Glycoproteins that enable attachment to host cells are known as:

Answer 7

Spikes

Question 8

The normal prion structure made by all mammals which has alpha-helices is called:

Answer 8

Cellular PrP (Prion Protein)

Question 9

The disease causing form of prion structure that has beta-pleated sheets is called:

Answer 9

Prion PrP