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Bacteria And Viruses
Test Description: Ch 10
Instructions: Answer all questions to get your test result.
1) When bacteria reproduce by binary fission,
A
one cell produces two cells
B
one cell produces three or more cells
C
two cells produce a third cell
D
two cells produce two more cells
2) A way to prevent viral infactions is through
A
vaccinations
B
genetic engineering
C
bioremediation
D
antibiotics
3) Which of the following is NOT true of bacteria?
A
Bacteria change the sugar in milk to lactic acid
B
Bacteria change nitrogen into a form plants can use.
C
Bacteria change harmful chemicals into harmless ones
D
Bacteria change oxygen into nitrogen.
4) What organism can live where nothing else lives?
A
eubacteria
B
viruses
C
cyanobacteria
D
archaebacteria
5) All bacteria have
A
two cells
B
three cells
C
four or more cells
D
one cell
6) Which of the following is NOT a shape of bacteria?
A
crystal
B
cocci
C
bacilli
D
spirilla
7) Which of the following is NOT a shape of viruses?
A
sphere
B
crystal
C
spirilla
D
cylinder
8) What is one function that viruses share with living things?
A
They move
B
They grow
C
They eat
D
They reproduce
9) Viruses reproduce by
A
nitrogen fixation
B
the lysogenic cycle and the lytic cycle
C
the lytic cycle only
D
binary fission
10) What is one way bacteria help the environment?
A
they change nitrogen into oxygen
B
they change nitrogen to a form plants can use
C
they change oxygen to a form plants can use
D
thye change oxygen into nitrogen
*select an answer for all questions
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