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Multiple Choice Quiz
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1

Once they evolved, _____________ forever changed the atmosphere on earth.
A)bacteria
B)archaebacteria
C)cyanobacteria
D)eukaryotes
2

Which of the following statements is not true of prokaryotic cells?
A)Prokaryotic cells are multicellular.
B)Prokaryotic cells do not have a nucleus.
C)Prokaryotic cells have circular DNA.
D)Prokaryotic cells have flagella.
3

When bacterial cell walls are covered with an outer membrane of lipopolysaccharide, they are
A)gram-positive.
B)gram-negative.
C)encapsulated.
D)endospores.
4

The prokaryotic genome is contained in the
A)plasmid.
B)endospore.
C)pilus.
D)nucleoid region.
5

Archaebacteria and bacteria differ in all of the following ways except
A)the structure of the cell wall.
B)their presence in nonextreme environments.
C)the structure of the plasma membrane.
D)the kinds of ribosomal proteins they possess.
6

Genetic recombination has led to antibiotic resistance through the transfer of
A)pili.
B)endospores.
C)plasmids.
D)bacterial chromosomes.
7

Prokaryotic organisms that obtain their energy by oxidizing inorganic substances are called
A)chemoautotrophs.
B)photoautotrophs.
C)chemoheterotrophs.
D)photoheterotrophs.
8

What disease is experiencing new outbreaks because of antibiotic resistance?
A)smallpox
B)cholera
C)tuberculosis
D)diphtheria
9

The disease sometimes referred to as the "silent STD" because it is usually asymptomatic in women early on is
A)chlamydia.
B)gonorrhea.
C)syphilis.
D)pelvic inflammatory disease.
10

Which of the following can be attributed to bacteria?
A)decomposition of dead organic matter
B)increasing oxygen levels in the atmosphere
C)production of antibiotics
D)all of these







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