Viruses

Question 1

How can a virus enter the body?

Answer 1

skin, genital tract, respiratory tract

Question 2

Describe how a virus enters the body

Answer 2

Virus envelope fuses with the plasma membrane of the host cell. The viral nuclear material is then released into the host cell

Question 3

Describe the self assembly of a virus

Answer 3

The viral proteins form a viral coat, which forms around the genome. The capsids then assemble and a virus is formed

Question 4

Describe the replication of a virus

Answer 4

A virus attaches and enters a host cell. The virus takes over the host cells metabolism, and protein translocation on ribsosomes occurs.The virus then forms, and is released by either budding or cell apoptosis

Question 5

Why does a virus require a host cell

Answer 5

To make copies of the virus’ genetic material and to supply the enzymed needed for replication

Question 6

Give an example of a virus that causes pneumonia

Answer 6

Adenovirus and influenza

Question 7

Give an example of a virus that causes STD

Answer 7

hiv and herpes