Viruses

Question 1

Define Virus

Answer 1

Non-cellular particle made up of genetic material & protein that can invade living cells

Question 2

The structure of a virus is made up of..

Answer 2

A core of NUCLEIC ACID surrounded by a coat pf protein called a CAPSID

Question 3

The nucleic acid core is either..

Answer 3

DNA or RNA depending on the virus

Question 4

The nucleic acid core may contain…

Answer 4

several hundred genes

Question 5

Define Bacteriophage

Answer 5

virus that invades the bacteria (“bacteria eater”)

Question 6

What are 4 different shapes of Bacteriophage?

Answer 6

1. Polyhedral
2. Spherical
3. Helical
4. Complex

Question 7

How many nanometers do viruses vary in sizes?

Answer 7

10 to 400 nanometers (1 nanometer is 1 billionth of a meter)

Question 8

Define Specificity

Answer 8

Specific viruses will infect specific organisms

Ex. a plant virus can’t infect an animal