Georgia Science Grade 7

Chapter 7: Bacteria

CRCT Practice

1
Which cannot be found in a bacterial cell?
A)ribosomes
B)nucleus
C)chromosome
D)cytoplasm
2
What shape are the bacterial cells shown?

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A)bacillus
B)coccus
C)spirillum
D)tubular
3
These bacteria are methane producers. Which statement is true of these bacteria?
A)They are aerobic.
B)They are in Kingdom Eubacteria.
C)They are used in sewage treatment.
D)They live only near deep ocean vents.
4
What process is occurring in the photograph?

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A)mitosis
B)fission
C)fusion
D)conjugation
5
The photo shows an example of what kind of reproduction?

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A)sexual
B)asexual
C)meitotic
D)symbiotic
6
What characteristic probably was used in naming cyanobacteria?
A)pigments
B)slime layer
C)cell shape
D)cell wall
7
Most pathogenic bacteria are consumer eubacteria and are grouped according to what characteristic?
A)chlorophyll
B)ribosomes
C)cell wall
D)plasmids
8
Which food is not processed with the help of bacteria?
A)beef
B)cheese
C)yogurt
D)pickles
9
Which is part of each bacterium?
A)a nucleus
B)mitochondria
C)ribosomes
D)a capsule
10
The figure above shows plant roots that have nodules that contain which of the following?

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A)sugar
B)cellulose
C)helpful viruses
D)nitrogen-fixing bacteria
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