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Bacteria Test
Test Description: This review game set covers ALCOSO #9
Instructions: Answer all questions to get your test result.
1) Bacteria live in a variety of locations one of which is the human mouth. Which explanation supports the wide variety of bacteria in the mouth?
A
Accessibility to nutrients makes the mouth a favorable habitat.
B
Accessibility to air cause bacteria to change form.
C
Calcium in the teeth provides appropriate pH levels in the mouth.
D
Salivary glands cause mutations in populations of bacteria.
2) Bacteria can thrive in many environments including hostile environments like hot springs, polar ice caps and salt flats. This is due to the __________ of bacteria.
A
varied shapes
B
small sizes
C
biochemical diversity
D
means of movement
3) Some bacteria, like those that cause Cholera, have a flagellum that allows them to
A
move.
B
produce sugar.
C
reproduce.
D
excrete water.
4) What are bacterial chromosomes made up of?
A
DNA paired in chromosomes
B
single circular piece of DNA
C
DNA or RNA in various forms
D
linear pieces of DNA
5) Archaea are different from bacteria in that Archaea
A
have molecules that are different from eukaryotic molecules.
B
developed before bacteria.
C
have structures that are more similar to bacterial structures.
D
have structures and molecules that are more similar to eukaryotes than bacteria.
6) One way bacteria are important to the Earth and its ecosystems is that
A
bacteria produce acetone.
B
bacteria use oxygen.
C
bacteria decompose dead organisms.
D
bacteria concentrate valuable minerals.
7) Prokaryotes are different from all other organisms in that their cells
A
lack DNA.
B
lack nuclei.
C
have cell walls.
D
have organelles.
8) Bacteria that use chemicals, like sulfur, as an energy source are considered
A
heterotrophs.
B
photoautotrophs.
C
chemoautotrophs.
D
saprobes.
9) Which of the following is considered a sexual process for exchanging genetic information but is not considered reproduction?
A
conjugation
B
transcription
C
translation
D
binary fission
10) Which of these is an example of how bacteria are beneficial?
A
can survive in hot, acidic environments
B
produce billions of offspring per day
C
reproduce sexually through conjugation
D
break down cellulose in some animals' digestive systems
11) Environmental spills of petroleum are sometimes cleaned up by using
A
bacteria.
B
viruses.
C
protists.
D
bacteriophages.
12) Which of the following comparisons is incorrect?
A
Prokaryotes: circular DNA, Eukaryotes: linear DNA
B
Prokaryotes: no cell nucleus, Eukaryotes: cell nucleus
C
Prokaryotes: most require oxygen, Eukaryotes: most do not require oxygen
D
Prokaryotes: smaller, Eukaryotes: larger
13) All bacteria are classified as
A
Archaea.
B
Protista.
C
Eukaryotes.
D
Prokaryotes.
14) Bacteria cause diseases by
A
destroying tissues.
B
producing toxins.
C
reducing wrinkles.
D
both (B) and (C).
15) Bacteria that use sunlight as an energy source are considered
A
saprobes
B
chemoautotrophs
C
photoautotrophs
D
heterotrophs
*select an answer for all questions
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