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