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Bacterial World
Test Description: What do you know about bacteria? Try to find out what have you learnt in this lesson.
Instructions: Answer all questions to get your test result.
1) Bacteria are...
A
Plants
B
Procaryotic cells
C
Eukaryotic cells
D
Animals
2) Bacteria main structures include...
A
Cell wall and nucleus
B
Organs and tissues
C
Cell envelope, nucleoid and ribosomes
D
Mytochondrae and chloroplasts
3) Bacterial role in the ecosystems...
A
is only of parasitic relationships
B
is decomposition and primary matter production
C
is only harmful
D
isn't of great importance
4) Main shapes of bacteria are...
A
coccus and ameboid
B
gram - and gram +
C
spherical and of star shape
D
coccus, bacillus, spirillus and filamentous
5) Bacterial external structures can be...
A
only flagella and cillia
B
sillicate and carbonate shells
C
never include a capsule
D
flagella, fimbrae and pilli
6) Bacteria can live....
A
in the most extreme conditions
B
only on the food
C
only in the sea and in lakes
D
are not ubicous
7) Cyanobacteria...
A
are photosyntetic
B
are parasites
C
are symbiotic
D
are saprophiyic
8) In our body...
A
bacteria only cause diseases
B
there are more bacterial cells than our own cells
C
there are only bacteria in our guts
D
there aren't bacteria if we are clean
9) Some bacteria...
A
are used to obtain medicines
B
all the others are right
C
are used to make yogurt, cheese and vinager
D
produce useful vitamins
10) Choose the right sentence:
A
A cold is a bacterial illness
B
Pneumonia is a bacterial disease
C
AIDS is caused by a bacteria
D
The flu is a bacterial disease
*select an answer for all questions
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