19.2 Viruses Flashcards
1
Q
what are viruses?
A
particles of nucleic acid, protein, and in some cases, lipids
2
Q
what do all viruses have in common?
A
they enter living cells and once inside, use the machinery of the infected cell to produce more viruses
3
Q
what is a typical virus composed of?
A
a core of DNA or RNA surrounded by a protein coat (capsid)
4
Q
capsid
A
a virus’s protein coat
5
Q
bacteriophages
A
viruses that infect bacteria
