viruses and bacteria reproduction Flashcards
Are viruses alive
viruses are not alive
virus
tiny infectious particles that cause disease
Sizeof virus
smaller than bacteria so 20-400 nm(nanometres)
What does a virus have instead of a cell wall
protein coat instead of a cell wall
What does a virus need to reproduce
need a living cell to reproduce
how does a virus make copies of the virus inside the host cell
the virus invades the host cell and takes over its reproduction system causing it to make copies of the virus inside the host cell.
What are viruses good at
very good at hiding within a host
How does bacteria reproduce
reproduces using binary fission which is where a cell spilts into two identical daughter cells
What can bacteria rapidly do
rapidly reproduce within a host or outside a
host (such as soil).
how does bacteria become resistant to antiobiotics
bacteria develops small rings of DNA called plasmids that overtime make the bacteria resistant to antiobiotics
what happens as a result of the rapid reproduction of bacteria
the ability to develop
mutations occur at a faster rate which can give them an ability to adapt to their changing environment.
What can bacteria acquire
new genetic material from other bacteria, viruses and plants and sometimes yeasts, which adds to their ability to adapt faster to theirchanging environment
where does bacteria best reproduce
warm and wet environments
what is a barrier to bacteria on humans
skin
where is bacteria found
everywhere
