Select one:
a. The upper most layer is made of lipopolysaccharides
b. The inner most layer is a phospholipid bilayer
c. The porin proteins create channels through the outer membrane
d. Gram positive bacteria have an outer membrane
e. The lipid portion of the lipopolysaccharide layer is an endotoxin
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The correct answer is: Gram positive bacteria have an outer membrane
Question 2
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The duplication of a cell's DNA is called
Select one:
a. Mitosis
b. Replication
c. Transcription
d. Translation
e. Mutation
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The correct answer is: Replication
Question 3
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Which of the following are not photosynthetic pigments?
Select one:
a. Carotenoids
b. Leukophylls
c. Phycobilins
d. Chlorophylls
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The correct answer is: Leukophylls
Question 4
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Most electron carriers are
Select one:
a. Coenzymes
b. Enzymes
c. Hydrogens
d. Inorganic phosphate
e. All of the choices are correct
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The correct answer is: Coenzymes
Question 5
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All microorganisms are best defined as organisms that
Select one:
a. Cause human disease
b. Lack a cell nucleus
c. Are infectious particles
d. Are too small to be seen with the unaided eye
e. Can only be found growing in laboratories
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The correct answer is: Are too small to be seen with the unaided eye
Question 6
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Eukaryotic flagella differ from prokaryotic flagella because only eukaryotic
flagella
Select one:
a. Are used for cell motility
b. Facilitate chemo taxis
c. Facilitate photo taxis
d. Are long whip-like structures
, e. Contain microtubules
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The correct answer is: Contain microtubules
Question 7
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Protists include
Select one:
a. Yeasts and molds
b. Algae and protozoa
c. Helminths
d. All of the choices are correct
e. None of the choices are correct
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The correct answer is: Algae and protozoa
Question 8
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An example of an amphipathic molecule found in living cells is:
Select one:
a. glucose
b. phospholipid
c. protein
d. nucleic acids
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The correct answer is: phospholipid
Question 9
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Which of the following is mismatched?
Select one: