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1. Bacteria contain Ribosomes,
a cell membrane and a nucleus.
FALSE: Everything in
the kingdoms Eubacteria
and Archebacteria are
prokaryotic. They don’t
contain a nucleus or
other membraneous
organelles, just loop of
DNA, ribosomes, a cell
membrane and cell wall.
2. Some bacteria are very
important in human nutrition.
TRUE: The E. coli
bacteria that live in
our gut produce
vitamin D that we
need to be healthy.
3. Some bacteria can take
nitrogen in the air and make
it into fertilizer for plants.
TRUE: Nitrogen fixing bacteria help
the environment by turning nitrogen
gas into nitrates that can be used by
plants as fertilizer. These bacteria
live in a mutualistic, symbiotic
relationship on nodules on beans and
clover (legumes).
4. Antibiotics kill both
bacteria and viruses and should
be used when you have a cold
or the flu.
FALSE: Only bacteria are
killed by antibiotics.
Colds and Flu are caused
by viruses and can’t be
cured by taking them.
5. Antibiotics are always
effective and kill all of the
bacteria every time.
FALSE: Over time
bacteria can become
resistant to antibiotics.
The weakest are killed off
and the strongest survive
by natural selection.
Always TAKE ALL of your
prescription antibiotics.
6. Bacteria help make the
foods you eat everyday.
TRUE: Yogurt, Cheese,
Sauerkraut, Vinegar and
many other products are
made through fermentation
by bacteria.
7. Many of the diseases
caused by bacteria make you
sick because of the toxins they
produce.
TRUE: Bacterial toxins
cause the symptoms in
most bacterial diseases
like streptococcus,
botulism, cholera, and
diptheria.
8. Viruses can reproduce on
their own, outside a living cell.
FALSE: Viruses don’t have
the equipment to carry out
replication, transcription,
or translation. They must
use a cell’s machinery to
reproduce.
9. HIV, the virus
that causes AIDs
can hide inside a
cell for years,
then become
active and start
killing cells.
TRUE: HIV is lysogenic (it
can hide for years in cells
then begin to reproduce
rapidly, killing white blood
cells) Symptoms may not
be visible for several
years.
10. Many, but not all viruses can
be prevented by vaccines.
TRUE: If a piece of dead or
weakened virus is shown to the
immune system, antibodies will be
made that will protect a person
from the disease in future cases.
11. Polio, Measles, Mumps,
and Influenza are all caused
by viruses.
TRUE: All of these diseases
are caused by a virus. Many
of them can be prevented by
vaccination. Taking
antibiotics will not help cure
any of these diseases.
12. Streptococcus (strep
throat), Anthrax, Cholera,
and Diptheria are viral
diseases.
False: All of these
diseases are caused by
a bacteria. Antibiotics
may be taken to kill
the bacteria and cure
the disease.