Question 1

Match the words with the most closely associated words.
-Nitrogen fixation

Accepted Answer

A) NH4+ to NO2- and NO3- 
B) can break the bonds in N2 molecules 
C) N2 to NH3 
A) NH4+ to NO2- and NO3- 
B) can break the bonds in N2 molecules 
C) N2 to NH3 C

Question 2

Fungi are surrounded by a cell wall made of chitin.

Accepted Answer

A) True 
 B)False  True

Question 3

All of following marine microbes have hard skeletal parts that sink to the bottom, forming oceanic sediments, except

Accepted Answer

A)  radiolarians. 
B)  coccolithophores. 
C)  foraminiferans. 
D)  diatoms. 
E)  fungi. 
A)  radiolarians. 
B)  coccolithophores. 
C)  foraminiferans. 
D)  diatoms. 
E)  fungi. E

Question 4

A rod-shaped bacteria is called:

Accepted Answer

A)  coccus. 
B)  auxospore. 
C)  bacillus. 
D)  bacteriophage. 
E)  spirillus. 
A)  coccus. 
B)  auxospore. 
C)  bacillus. 
D)  bacteriophage. 
E)  spirillus.

Question 5

Tintinnids are examples of the following protozoans:

Accepted Answer

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

Question 6

Facultative anaerobic bacteria

Accepted Answer

A)  do not tolerate oxygen. 
B)  respire in low oxygen. 
C)  are chemosynthetic. 
D)  require oxygen to perform photosynthesis. 
E)  are common in open water samples. 
A)  do not tolerate oxygen. 
B)  respire in low oxygen. 
C)  are chemosynthetic. 
D)  require oxygen to perform photosynthesis. 
E)  are common in open water samples.

Question 7

Virus size is

Accepted Answer

A)  300 to 400 $\mu$m. 
B)  10 to 400 mm. 
C)  10 to 200 cm. 
D)  10 to 400 nm. 
E)  300 to 400 mm. 
A)  300 to 400 $\mu$m. 
B)  10 to 400 mm. 
C)  10 to 200 cm. 
D)  10 to 400 nm. 
E)  300 to 400 mm.

Question 8

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

Accepted Answer

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

Question 9

Match the words with the most closely associated words.
-Nitrification

Accepted Answer

A) NH4+ to NO2- and NO3- 
B) can break the bonds in N2 molecules 
C) N2 to NH3 
A) NH4+ to NO2- and NO3- 
B) can break the bonds in N2 molecules 
C) N2 to NH3

Question 10

Bacteria belong to the domain

Accepted Answer

A)  Eubacteria. 
B)  Eukarya. 
C)  Archaea. 
D)  Animalia. 
E)  Protista. 
A)  Eubacteria. 
B)  Eukarya. 
C)  Archaea. 
D)  Animalia. 
E)  Protista.

Question 11

The process where DNA is duplicated and then the cell divides into two cells is called:

Accepted Answer

A)  mitosis. 
B)  meiosis. 
C)  binary fusion. 
D)  auxospore. 
E)  fusion. 
A)  mitosis. 
B)  meiosis. 
C)  binary fusion. 
D)  auxospore. 
E)  fusion.

Question 12

Toxic dinoflagellates can directly harm other organisms during bloom periods by secreting their toxins in the water or by being consumed and concentrated in the tissues of filter-feeding organisms. Can you think of ways in which blooms of non-toxic dinoflagellates may harm other organisms in the water?

Accepted Answer

A bloom of non-toxic dinoflagellates can

Question 13

Briefly describe 3 ecological roles of viruses.

Accepted Answer

Viruses can suppress or cause declines i

Question 14

The frustule of diatoms is made of:

Accepted Answer

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

Question 15

Amoeboid protozoans are autotrophic.

Accepted Answer

A) True 
 B)False

Question 16

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

Accepted Answer

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

Question 17

Match the description with the most closely associated group.
-Eukarya

Accepted Answer

A) prokaryote in some ways similar to eukaryotes 
B) original inhabitants of the sea 
C) nucleus and membrane-bound organelle 
A) prokaryote in some ways similar to eukaryotes 
B) original inhabitants of the sea 
C) nucleus and membrane-bound organelle

Question 18

The only autotrophic bacteria are chemosynthetic bacteria.

Accepted Answer

A) True 
 B)False

Question 19

Since purple and green bacteria do not use water in their autotrophic processes, they are not photosynthetic.

Accepted Answer

A) True 
 B)False

Question 20

Match the characteristic with its most closely associated organisms.
-Alveolates

Accepted Answer

A) disc-shaped calcareous scales 
B) membranous sacs 
C) silicon frustules 
A) disc-shaped calcareous scales 
B) membranous sacs 
C) silicon frustules

Match the words with the most closely associated words. -Nitrogen fixation

Fungi are surrounded by a cell wall made of chitin.

All of following marine microbes have hard skeletal parts that sink to the bottom, forming oceanic sediments, except

A rod-shaped bacteria is called:

Tintinnids are examples of the following protozoans:

Facultative anaerobic bacteria

Virus size is

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

Match the words with the most closely associated words. -Nitrification

Bacteria belong to the domain

The process where DNA is duplicated and then the cell divides into two cells is called:

Briefly describe 3 ecological roles of viruses.

The frustule of diatoms is made of:

Amoeboid protozoans are autotrophic.

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

Match the description with the most closely associated group. -Eukarya

The only autotrophic bacteria are chemosynthetic bacteria.

Since purple and green bacteria do not use water in their autotrophic processes, they are not photosynthetic.

Match the characteristic with its most closely associated organisms. -Alveolates

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

Match the words with the most closely associated words. -Nitrogen fixation

Fungi are surrounded by a cell wall made of chitin.

All of following marine microbes have hard skeletal parts that sink to the bottom, forming oceanic sediments, except

A rod-shaped bacteria is called:

Tintinnids are examples of the following protozoans:

Facultative anaerobic bacteria

Virus size is

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

Match the words with the most closely associated words. -Nitrification

Bacteria belong to the domain

The process where DNA is duplicated and then the cell divides into two cells is called:

Briefly describe 3 ecological roles of viruses.

The frustule of diatoms is made of:

Amoeboid protozoans are autotrophic.

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

Match the description with the most closely associated group. -Eukarya

The only autotrophic bacteria are chemosynthetic bacteria.

Since purple and green bacteria do not use water in their autotrophic processes, they are not photosynthetic.

Match the characteristic with its most closely associated organisms. -Alveolates

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