Prokaryotes Question Preview (ID: 17562)
Intro To Bacteria.
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Prokaryotes
a) are true cells.
b) are large multicellular organisms.
c) do not contain membrane-bound organelles.
d) are not common.
Facultative anaerobes
a) require a constant supply of oxygen.
b) are killed in an oxygenated environment.
c) do not always need oxygen.
d) are photosynthetic but do not give off oxygen.
A bacterium cell wall is composed of
a) peptidoglycan.
b) cellulose.
c) chitin.
d) calcium carbonate.
The chromosome of a bacterium is
a) contained in the nucleus.
b) nonexistent - bacteria do not have chromosomes
c) another name for a plasmid.
d) contained in the nucleoid.
In response to unfavorable conditions some bacteria form
a) endospores.
b) seeds.
c) colonies.
d) shelters of protein.
Bacteria reproduce by
a) sexual reproduction.
b) binary fission.
c) gamete formation.
d) pollination.
The exchange of genetic material between bacteria through a sex pilus is
a) transformation.
b) conjugation.
c) transduction.
d) translation.
The uptake of genetic material from the environment is
a) transformation.
b) conjugation.
c) transduction.
d) translation.
The transfer of genetic information from one bacteria to another by a bacteriophage is
a) transformation.
b) conjugation.
c) transduction.
d) translation.
An obligate anaerobe
a) cannot grow without oxygen.
b) cannot grow in the presence of oxygen.
c) can only grow at high temperatures.
d) cannot grow at high temperatures.
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