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