viruses Flashcards
(6 cards)
1
Q
describe viruses (5)
A
● acellular
● not living (can’t respire)
● can’t replicate on their own (require living cell)
● very small
● no organelles
2
Q
what is the structure of a virus? (4)
A
● receptors
● DNA / RNA (double / single stranded)
● cell envelope
● protein coat (capsid)
3
Q
what do cell receptors do?
A
allow virus to enter cell through cell membrane
4
Q
what does the protein coat (capsid) do?
A
protects DNA
5
Q
what is the cell envelope?
A
cell membrane from a cell virus has exited
6
Q
does every virus have a cell envelope?
A
no
