Question 1

The protein coat covering the nucleic acid core of the virus is called the

Accepted Answer

A)  capsid. 
B)  virion. 
C)  nucleocapsid. 
D)  envelope. 
E)  membrane. 
A)  capsid. 
B)  virion. 
C)  nucleocapsid. 
D)  envelope. 
E)  membrane.

Question 2

Some viruses can change geochemical cycles leading to:

Accepted Answer

A)  a change in seawater pH. 
B)  reduction in surface oxygen. 
C)  modification of salinity. 
D)  an effect on global warming. 
E)  increased geothermal activity. 
A)  a change in seawater pH. 
B)  reduction in surface oxygen. 
C)  modification of salinity. 
D)  an effect on global warming. 
E)  increased geothermal activity.

Question 3

You add a weak acid solution to a sample of foraminifera shells, and they bubble and fizz. This tells you that the external shells of foraminiferans are composed of:

Accepted Answer

A)  silica. 
B)  protein. 
C)  cellulose. 
D)  calcium carbonate. 
E)  starch. 
A)  silica. 
B)  protein. 
C)  cellulose. 
D)  calcium carbonate. 
E)  starch.

Question 4

What is the importance of nitrogen-fixation to autotrophic organisms?

Accepted Answer

Without the process of nitroge

Question 5

Zooxanthellae are members of the following group of Eukaryotes:

Accepted Answer

A)  diatoms. 
B)  coccolithophores. 
C)  amoebas. 
D)  dinoflagellates. 
E)  ciliates. 
A)  diatoms. 
B)  coccolithophores. 
C)  amoebas. 
D)  dinoflagellates. 
E)  ciliates.

Question 6

A special structure on certain cyanobacteria for nitrogen fixation is called a(n):

Accepted Answer

A)  ammonia cyst. 
B)  homocyst. 
C)  heterocyst. 
D)  nematocyst. 
E)  pneumatocyst. 
A)  ammonia cyst. 
B)  homocyst. 
C)  heterocyst. 
D)  nematocyst. 
E)  pneumatocyst.

Question 7

A viral lysogenic cycle is characterized by:

Accepted Answer

A)  rapid infection and emergence. 
B)  rapid infection, replication of nucleic acids and proteins, assembly of virions and release by rupture. 
C)  a virus remaining in the host cell then being released. 
D)  a viral nucleic acid being inserted into the host genome and possibly residing through multiple cell divisions prior to lytic. 
A)  rapid infection and emergence. 
B)  rapid infection, replication of nucleic acids and proteins, assembly of virions and release by rupture. 
C)  a virus remaining in the host cell then being released. 
D)  a viral nucleic acid being inserted into the host genome and possibly residing through multiple cell divisions prior to lytic.

Question 8

Match the words with the most closely associated group.
-Foraminiferans

Accepted Answer

A) collar of microvilli traps bacteria prey 
B) siliceous perforated shell 
C) reticulopods 
A) collar of microvilli traps bacteria prey 
B) siliceous perforated shell 
C) reticulopods

Question 9

Virus replication only occurs

Accepted Answer

A)  when conditions stress the virus. 
B)  at regular intervals. 
C)  inside a host cell. 
D)  outside of eukaryote cells. 
E)  when virus particles undergo binary fission. 
A)  when conditions stress the virus. 
B)  at regular intervals. 
C)  inside a host cell. 
D)  outside of eukaryote cells. 
E)  when virus particles undergo binary fission.

Question 10

MATCHING
Match the description with the most closely associated term.
-Binal

Accepted Answer

A) icosahedral heads with helical tails 
B) protein subunit of the capsid spiral around the central core of the nucleic acid 
C) capsid with twenty triangular faces 
A) icosahedral heads with helical tails 
B) protein subunit of the capsid spiral around the central core of the nucleic acid 
C) capsid with twenty triangular faces

Question 11

The following amoeboid protozoans are important sources of silica deposits in some areas of the world:

Accepted Answer

A)  diatoms. 
B)  silicoflagellates. 
C)  radiolarians. 
D)  foraminiferans. 
E)  ciliates. 
A)  diatoms. 
B)  silicoflagellates. 
C)  radiolarians. 
D)  foraminiferans. 
E)  ciliates.

Question 12

Chemosynthetic bacteria are unique:

Accepted Answer

A)  in not requiring CO2. 
B)  because they use energy derived from chemicals. 
C)  because they can produce food with low light. 
D)  and are very common in the twilight depths. 
E)  because many forms are also bioluminescent. 
A)  in not requiring CO2. 
B)  because they use energy derived from chemicals. 
C)  because they can produce food with low light. 
D)  and are very common in the twilight depths. 
E)  because many forms are also bioluminescent.

Question 13

Briefly explain why viruses are not considered living organisms.

Accepted Answer

Viruses lack the ability to me

Question 14

Nitrifying bacteria are important in the conversion of nitrogen gas to usable forms of nitrogen.

Accepted Answer

A) True 
 B)False

Question 15

What is diatomaceous earth? How is it used commercially?

Accepted Answer

Diatomaceous earth is the fossilized rem

Question 16

You are a virologist studying a particularly pathogenic virus that infects sea turtles. In the course of your research, you discover that the virus is destroyed by a protein-digesting enzyme. The structure most vulnerable to this enzyme must be the viral

Accepted Answer

A)  membrane. 
B)  envelope. 
C)  DNA. 
D)  capsid. 
A)  membrane. 
B)  envelope. 
C)  DNA. 
D)  capsid.

Question 17

Match the words with the most closely associated phrase.
-Filamentous marine fungi asexual reproduction

Accepted Answer

A) conidiospores 
B) budding 
C) ascocarp 
A) conidiospores 
B) budding 
C) ascocarp

Question 18

Harmful algal bloom toxins are produced by:

Accepted Answer

A)  diatoms. 
B)  coccolithophores. 
C)  amoebas. 
D)  dinoflagellates. 
E)  radiolarians. 
A)  diatoms. 
B)  coccolithophores. 
C)  amoebas. 
D)  dinoflagellates. 
E)  radiolarians.

Question 19

A spherical shaped bacteria is called:

Accepted Answer

A)  coccus. 
B)  auxospore. 
C)  bacillus. 
D)  bacteria phage. 
E)  spirillus. 
A)  coccus. 
B)  auxospore. 
C)  bacillus. 
D)  bacteria phage. 
E)  spirillus.

Question 20

Match the description with the most closely associated word.
-Labyrinthulids

Accepted Answer

A) DHA fatty acid 
B) planktonic decomposer 
C) wasting disease 
A) DHA fatty acid 
B) planktonic decomposer 
C) wasting disease

The protein coat covering the nucleic acid core of the virus is called the

Some viruses can change geochemical cycles leading to:

You add a weak acid solution to a sample of foraminifera shells, and they bubble and fizz. This tells you that the external shells of foraminiferans are composed of:

What is the importance of nitrogen-fixation to autotrophic organisms?

Zooxanthellae are members of the following group of Eukaryotes:

A special structure on certain cyanobacteria for nitrogen fixation is called a(n):

A viral lysogenic cycle is characterized by:

Match the words with the most closely associated group. -Foraminiferans

Virus replication only occurs

MATCHING Match the description with the most closely associated term. -Binal

The following amoeboid protozoans are important sources of silica deposits in some areas of the world:

Chemosynthetic bacteria are unique:

Briefly explain why viruses are not considered living organisms.

Nitrifying bacteria are important in the conversion of nitrogen gas to usable forms of nitrogen.

What is diatomaceous earth? How is it used commercially?

You are a virologist studying a particularly pathogenic virus that infects sea turtles. In the course of your research, you discover that the virus is destroyed by a protein-digesting enzyme. The structure most vulnerable to this enzyme must be the viral

Match the words with the most closely associated phrase. -Filamentous marine fungi asexual reproduction

Harmful algal bloom toxins are produced by:

A spherical shaped bacteria is called:

Match the description with the most closely associated word. -Labyrinthulids

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Multicellular Primary Producers

Lower Invertebrates

Higher Invertebrates

Marine Fishes

Reptiles and Birds

Marine Mammals

Intertidal Communities

Estuaries

Coral Reef Communities

Continental Shelves and Neritic Zone

The Open Sea

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters

Exam 6: Marine Microbes

The protein coat covering the nucleic acid core of the virus is called the

Some viruses can change geochemical cycles leading to:

You add a weak acid solution to a sample of foraminifera shells, and they bubble and fizz. This tells you that the external shells of foraminiferans are composed of:

What is the importance of nitrogen-fixation to autotrophic organisms?

Zooxanthellae are members of the following group of Eukaryotes:

A special structure on certain cyanobacteria for nitrogen fixation is called a(n):

A viral lysogenic cycle is characterized by:

Match the words with the most closely associated group. -Foraminiferans

Virus replication only occurs

MATCHING Match the description with the most closely associated term. -Binal

The following amoeboid protozoans are important sources of silica deposits in some areas of the world:

Chemosynthetic bacteria are unique:

Briefly explain why viruses are not considered living organisms.

Nitrifying bacteria are important in the conversion of nitrogen gas to usable forms of nitrogen.

What is diatomaceous earth? How is it used commercially?

You are a virologist studying a particularly pathogenic virus that infects sea turtles. In the course of your research, you discover that the virus is destroyed by a protein-digesting enzyme. The structure most vulnerable to this enzyme must be the viral

Match the words with the most closely associated phrase. -Filamentous marine fungi asexual reproduction

Harmful algal bloom toxins are produced by:

A spherical shaped bacteria is called:

Match the description with the most closely associated word. -Labyrinthulids

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Multicellular Primary Producers

Lower Invertebrates

Higher Invertebrates

Marine Fishes

Reptiles and Birds

Marine Mammals

Intertidal Communities

Estuaries

Coral Reef Communities

Continental Shelves and Neritic Zone

The Open Sea

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters