Page 365 - BenchMark_5-2
P. 365
Bacteria and Viruses
Four Stages of a Virus
A virus uses a host cell to make new
virus particles. First, the virus finds a
host cell. Then the virus puts its genetic
1 The virus finds a host cell.
material into the host cell. After that,
2 The virus enters the cell.
the DNA of the virus reproduces. Finally,
the host cell bursts open and releases
3 Virus genes take over and
reproduce. the new viruses. When new viruses
invade other host cells, the process
4 New virus particles burst out to begins again.
find new host cells.
Unit 11 | Bacteria and Viruses
