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Bacteria/DNA Review
Test Description: Questions to review for Friday test.
Instructions: Answer all questions to get your test result.
1) Scientists classify and name bacteria based on their
A
formation
B
Gram stain
C
shape
D
all of the above
2) The bacteria Staphylococcus aureus would be
A
sphere-shaped and in a cluster
B
rod-shaped and in a chain
C
spiral-shaped and in a cluster
D
sphere-shaped and in pairs
3) Bacteria in the Kingdom Archaebacteria can
A
live in extreme conditions
B
live for a long time
C
die when exposed to salt
D
multiply rapidly
4) Viruses take over the host cell machinery to
A
eliminate waste
B
manufacture food
C
make more virus particles
D
cause trouble
5) Viruses are always
A
specific to a particular host
B
able to reproduce on their own.
C
able to live outside of a cell
D
deadly to their hosts
6) The first living organisms to inhabit the Earth were
A
viruses
B
dinosaurs
C
insects
D
cyanobacteria
7) The earliest bacteria produced oxygen enabling
A
single-celled organisms to breathe
B
more complex life to develop over time
C
viruses to multiply
D
animals to hunt for food.
8) The three part building block of DNA is called
A
a nucleotide
B
a nitrogen base
C
a pyrimidine
D
a phosphate
9) In DNA, the nitrogen base pairs form the
A
top of the ladder
B
sides of the ladder
C
rungs of the ladder
D
bottom of the ladder
10) HIV can be spread through
A
shaking hands
B
having unprotected sex or sharing needles
C
sitting on toilet seats
D
kissing
*select an answer for all questions
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