Chp 5 Quiz

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CHP 5 QUIZ

Question 1 E.
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One of the following statements about marine viruses is not true: Select one:
a. Are involved in the release of DOM (dissolved organic matter) into the water b. Bridge the gap between the non-living and the living
c. Their genetic material is in the form of DNA or RNA
d. Cause diseases in many types of organisms
e. Consist of minute cells sometimes attached into chains Question 2 E.
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Bacteriophages are:
Select one:
a. Archea
b. Bacteria
c. Protozoa
d. Algae
e. Viruses

Question 3 D.
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Prokaryotes differ from eukaryotes in regards to:
Select one:
a. Shape of DNA molecules
b. Size of ribosomes
c. Presence of nucleus
d. All of the above
e. A and B only
Question 4 B.
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Which of the following is not true of decay bacteria?
Select one:
a. Break down waste products and dead organic matter
b. Carry out photosynthesis
c. Are heterotrophs
d. Are particularly abundant in bottom sediments
e. Ensure the recycling of essential nutrients
Question 5 E.
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Bacteria that make their own organic compounds by obtaining energy from chemical compounds and not directly from light are known as: Select one:
a. Heterotrophic
b. Decay
c. Photosynthetic
d. Protists
e. Chemosynthetic
Question 6 E.
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Cyanobacteria are characterized by being:
Select one:
a. Decomposers
b. Found only in the plankton
c. Having a glass-like skeleton
d. Protists
e. Photosynthetic
Question 7 A.
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Which of the following are classified as autotrophs?
Select one:
a. Cyanobacteria
b. Lysogenic viruses
c. Bacteriophages
d. All of the above
e. B and C only
Question 8 B.
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Endophytes are primary producers that live:
Select one:
a. On the surface of planktonic organisms
b. Inside primary producers
c. Inside animals
d. On the surface of animals
e. Within decay organisms
Question 9 A.
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Archaea are characterized by being:
Select one:
a. Prokaryotic
b. Autotrophs only
c. Heterotrophs only
d. Found only in extreme environments
e. Eukaryotic
Question 10 C.
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Archaea are now being detected in many environments by identifying one of the following chemicals characteristic of the group: Select one:
a. Pigments
b. Chlorophyll
c. Nucleic acids
d. Proteins
e. Carbohydrates
Question 11 D.
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Organisms having a shell made of silica (SiO2):
Select one:
a. Foraminiferans
b. Stromatolites
c. Cyanobacteria
d. Diatoms
e. Ciliates
Question 12 B.
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Diatoms are mostly:
Select one:
a. Heterotrophs
b. Planktonic
c. Multicellular
d. Red in color
e. Prokaryotic
Question 13 E.
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Which of the following can be dangerous to human health?
Select one:
a. Diatoms
b. Dinoflagellates
c. Radiolarians,t
d. All of the above
e. e. A and B only

Question 14 C.
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Red tides are caused mostly by:
Select one:
a. Diatoms
b. Foraminiferans
c. Dinoflagellates
d. Red seaweeds
e. Radiolarians
Question 15 A.
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Dinoflagellates that live in association with reef-building corals...
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