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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
Animals
B
Eukaryotic cells
C
Plants
D
Procaryotic cells
2) Bacteria main structures include...
A
Cell wall and nucleus
B
Mytochondrae and chloroplasts
C
Cell envelope, nucleoid and ribosomes
D
Organs and tissues
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 and ameboid
B
coccus, bacillus, spirillus and filamentous
C
gram - and gram +
D
spherical and of star shape
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 in the sea and in lakes
C
only on the food
D
in the most extreme conditions
7) Cyanobacteria...
A
are parasites
B
are saprophiyic
C
are photosyntetic
D
are symbiotic
8) In our body...
A
bacteria only cause diseases
B
there aren't bacteria if we are clean
C
there are more bacterial cells than our own cells
D
there are only bacteria in our guts
9) Some bacteria...
A
produce useful vitamins
B
are used to make yogurt, cheese and vinager
C
all the others are right
D
are used to obtain medicines
10) Choose the right sentence:
A
A cold is a bacterial illness
B
AIDS is caused by a bacteria
C
Pneumonia is a bacterial disease
D
The flu is a bacterial disease
*select an answer for all questions
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