Marine Biology 10th Edition

Marine Biology 10th Edition by Castr -Test Bank


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Marine Biology 10th Edition by Castr – Test Bank

Chapter 05

The Microbial World

Multiple Choice Questions

1.  One of the following statements about marine viruses is not true:
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

2.  Bacteriophages are types of:
A.  Archea
B.  Bacteria
C.  Protozoa
D.  Algae
E.  Viruses

3. Prokaryotes differ from eukaryotes in regards to:
A. Shape of DNA molecules
B. Size of ribosomes
C. Presence of the nucleus
D. All of the above
E. A and B only

4.  Which of the following is not true of decay bacteria?
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

5. Bacteria that make their own organic compounds by obtaining energy from chemical compounds and not directly from light are known as:
A. Heterotrophic
B. Decay
C. Photosynthetic
D. Protists
E. Chemosynthetic

6. Cyanobacteria are characterized by being:
A. Decomposers
B. Found only in the plankton
C. Having a glass-like skeleton
D. Protists
E. Photosynthetic

7.  Which of the following would be classified as autotrophic?
A.  Cyanobacteria
B.  Lysogenic viruses
C.  Bacteriophages
D.  All of the above
E.  B and C only

8. Endophytes are primary producers that live:
A. On the surface of planktonic organisms
B. Inside primary producers
C. Inside animals
D. On the surface of animals
E. Within decay organisms

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