Viruses

Question 1

Answer 1

Question 1

Give example of viruses:

Answer 1

Tobacco mosaic virus: Discoloration of the leaves of a tobacco plant

Influenza virus: Attacks the respiratory system (throat, nose and lungs)

HIV: Severely damages the person’s immune system (attacks its cells), so they are more likely to get other diseases

Question 2

All viruses are parasites. This means…

Answer 2

…that they can only reproduce inside living cells.

Question 3

The organism in which a virus lives in is called…

Answer 3

The Host

Question 4

Describe the structure of viruses:

Answer 4

It is composed of a core of genetic material surrounded by a protein coat.

Question 5

The genetic material can be…

Answer 5

…DNA or RNA

Question 6

What does the Virus need in order to reproduce inside its host cell?

Answer 6

A few genes in the DNA or RNA

Question 7

Why is a virus not considered a living organism?

Answer 7

It does none of the normal characteristics of a living thing except reproduction, and they can only do this parasitically.

Question 8

What is the virus presented?

Answer 8

Tobacco Mosaic Virus