Bacteria and Viruses
I.
Vocabulary
1.
prokaryote an
organism that consists of a single cell that does not have a nucleus
2.
flagella the
hairlike part of bacteria
3.
eukaryotes cells that
have a nucleus
4.
binary
fission a form of asexual
reproduction in single celled organisms
5. endospore a thick
wall protective spore that forms inside a bacterial cell and resists harsh
conditions
6.
bioremendiationthe
biological treatment of hazardous waste by living organisms
7.
antibiotics medicine
used to kill bacteria and other microorganisms
8. pathogenic bacteria bacteria that cause
disease
9. host an organism from which a
parasite takes food or shelter
10. Virus a microscopic particle that gets
inside a cell and often destroys it.
11. Genetic engineer when scientists
changes the genes of bacteria, or any other living thing
12. Lysogenic cycle cycle in which the
genes of a virus are incorporated into the genes of the host cell
13. Lytic cycle cycle in which viruses enters to
a cell reproduce itself and then breaks open the cell
14. Lactose lactic-acid producing bacteria
II.
Answer the questions
1. The structure that
helps bacteria survive harsh conditions is called:
a)
Endospore
b)
Shell
c)
Exospores
d)
Exoskeleton
2. Bacteria are used for
all of the following except:
a)
Making
certain food
b)
Making
antibiotics
c)
Cleaning
up oil spills
d)
Preserving fruit
3. In the lytic cycle the
host cell:
a)
Is destroyed
b)
Destroys
the virus
c)
Become
a virus
d)
Undergoes
cell division
4. A bacterial cell:
a)
Is
an endospore
b)
Has a loop of DNA
c)
Has
a distinct nucleus
d)
Is
an eukaryote
5. Bacteria:
a)
Include
methane makers
b)
Include decomposers
c)
All
have chlorophyll
d)
Are
rod shaped
6. Cyanobacteria:
a)
Are
consumers
b)
Are
parasites
c)
Contain chlorophyll
d)
Are
decomposers
7. Archaea:
a)
Are
special types of bacteria
b)
Lives
only in places without oxygen
c)
Are
lactic acid producing bacteria
d)
Can live in hostile environments
8. Viruses:
a)
Are
about the same size as bacteria
b)
Have
nuclei
c)
Can reproduce only within a host cell
d)
Do
not infect plants
9. Bacteria are important
to the planet as:
a)
Decomposers
of death organic matter
b)
Processors
of nitrogen
c)
Makers
of medicine
d)
All the above
Complete the charts
1.
Complete
the concept map with the words behind:
Bacteria cynobacteria bacilli spirilla consumers cocci producers
Prokaryote
|
Eukaryote
|
·
Don’t
have a nucleus
·
Independent
organisms
|
·
Have
nucleus
·
Reproduce
different
|
·
Are
types of cells
·
Get
energy
|
|
Bacteria
|
Characteristic
|
Bacilli
|
Rod shaped
|
Cocci
|
Spheres
|
Spirilla
|
Spiral shaped
|
DNA
|
RNA
|
·
2
stands of nucleotides
·
Viruses
that causes warts and chicken pox
|
·
1
stand of nucleotides
·
Viruses
that cause flu and colds
|
·
Contain
information for making proteins
·
Genetic
material in viruses
|
|
Bacteria
|
Archaea
|
·
Endospores
·
Are
too small to be seen
|
·
Live
where anyone can’t
·
Different
cell structure
|
·
Are
domains
·
They
can be classified
|
|
V.
Complete
Bacteria bacilli cocci spirilla
Archaea heat lovers salt lovers methane makers
Virus spheres cylinders crystals
What virus shape attacks only bacteria?
Spacecraft
VI.
True or false
1. F
viruses
are living things
ARE
IN LIVING THINGS
2. F
only
bacteria reproduces by binary fission
ALL
PROKARYOTES
3. F
bacteria
only produce antibiotics
ALSO
FOOD
4. T
bacteria
and archaea are prokaryotes
5. F
viruses
are eukaryotes
VIRUSES
ARE NOT CELLS
NOTA: SOLO SALE EL CUADRO EN WORD Y LOS PUNTOS SE HAN MOVIDO A LA IZQUIERDA
NOTA: SOLO SALE EL CUADRO EN WORD Y LOS PUNTOS SE HAN MOVIDO A LA IZQUIERDA
