Viruses

Question 1

Are viruses alive

Answer 1

No they are pathogens

Question 2

What proves that viruses are unalive

Answer 2

They cannot reproduce on their own and need a host cell

Question 3

How do viruses infect cells

Answer 3

Virus enters host cell
Virus reproduces within host cell
Viruses burst out killing cell

Question 4

Are viruses prokaryotic or eukaryotic

Answer 4

Neither

Question 5

Describe viruses structurally using these words:
-core
-genomes
-stranded
-coat

Answer 5

• nucleus acid core
• genomes are either rna or dna
• can be single or double stranded
• have a protein coat called a capsid

Question 6

What is the protein coat on a virus called and what is its function

Answer 6

Capsid
Used for attaching and entering host cell due to its specific shape

Question 7

What is the outer layer of a virus called and how is it formed

Answer 7

Envelope
Formed usually from the membrane phospholipids they were made in

Question 8

How are visuses parasitic

Answer 8

They can only reproduce by infecting living cells and using its protein building machinery (ribosomes) to produce new viral particles