Quiz 13 Review

Question 1

Single-celled photosynthetic microbes that drift with the ocean currents are called:

Answer 1

Phytoplankton

Question 2

Which of the following phytoplankton carry out photosynthesis?
• Diatoms
• Dinoflagellates
• Coccolithophorids
• Synechococcus
• All of the above

Answer 2

All of the above

Question 3

Phytoplankton produce oxygen as a byproduct of photosynthesis.

Answer 3

True

Question 4

Biologically important elements that are required in trace amounts by phytoplankton are generally referred to as:

Answer 4

Micronutrients

Question 5

The rapid cellular division of phytoplankton stimulated by abundant sunlight and nutrients constitutes what oceanographers call a phytoplankton

Answer 5

Bloom

Question 6

What color are southern California waters during winter and summer?

Answer 6

Blue

Question 7

In the light-dark bottle method, the light bottle is used to determine rates of:

Answer 7

net primary production

Question 8

What color are southern California waters during the spring and fall blooms?

Answer 8

Green

Question 9

Autotrophic organisms that use chemical energy to fix carbon dioxide into organic carbon are called:

Answer 9

Chemoauthotrophs

Question 10

The boundary between a nutrient-depleted layer and a nutrient-rich layer is called:

Answer 10

Nutricline

Question 11

Autotrophic organisms that use light energy to fix carbon dioxide into organic carbon are called:

Answer 11

Photoautotrophs

Question 12

The region of our planet from 23.5 deg S to 23.5 deg N is called:

Answer 12

The tropics

Question 13

Which of the following belong to the nano- and microphytoplankton, the larger phytoplankton?
• Diatoms
• Dinoflagellates
• Coccolithophorids
• Synechococcus
• All except D

Answer 13

All except D

Question 14

Throughout most of the ocean, phytoplankton growth is limited by the availability of

Answer 14

Nitrate

Question 15

Phytoplankton are a ______ for atmospheric carbon dioxide.

Answer 15

Sink

Question 16

Organisms that manufacture organic matter from inorganic materials and an energy source are called:

Answer 16

Primary Producers

Question 17

Phytoplankton photosynthesis occurs

Answer 17

Only in the photic zone where sufficient light is available

Question 18

In the open ocean where phytoplankton are sparse, biological oceanographers typically use ______ as a measure of primary productivity.

Answer 18

(not the oxygen light-dark bottle method)

Question 19

What color are southern California waters during the spring and fall blooms?

Answer 19

Green

Question 20

Regions of high nitrate and low chlorophyll likely occur because:

Answer 20

(not due to zooplankton grazing on phytoplankton)

Question 21

Several field experiements in the world ocean have shown that addition of iron to iron-poor waters

Answer 21

Increases the concentration of phytoplankton

Question 22

What color are southern California waters during the winter and summer?

Answer 22

Blue

Question 23

The region of our planet from 23.5 deg N/S to 66.5 deg N/S is called

Answer 23

The temperate zone

Question 24

The region of our planet from 66.5 deg N/S to 90 deg N/S is called

Answer 24

The polar zone

Question 25

The breakdown of organic matter in the presence of oxygen is called:

Answer 25

Aerobic respiration

Question 26

Which of the following are primary producers in the world ocean?
• Phytoplankton
• Chemosynthetic bacteria
• California kelp and other seaweeds
• Seagrasses
• All of the above

Answer 26

All of the above

Question 27

Biologically important nutrients include:
• Nitrate
• Phosphate
• Potassium
• Iron
• All of the above

Answer 27

All of the above

Question 28

Surface waters whose concentrations of dissolved nitrate are abundant are characterized as:

Answer 28

Nitrate-replete

Question 29

The solid waste product of a copepod is called a:

Answer 29

Fecal pellet

Question 30

The conversion of organic matter into inorganic nutrients in the ocean is called:

Answer 30

Remineralization

Question 31

Which of the following organisms are known as nature's little recyclers?
• Photosynthetic bacteria
• Phytoplankton
• Zooplankton
• Heterotrophic bacteria
• Coccolithophorids

Answer 31

Heterotrophic bacteria

Question 32

The sun-capturing, CO2 using, food-making microbes in the ocean are called:

Answer 32

Phytoplankton

Question 33

The rate of photosynthesis of phytoplankton is known as:

Answer 33

Gross primary production

Question 34

The arrangement of reaction centers and electron transport chains of the light reactions is called:

Answer 34

(not photosynthetic carbon reduction cycle)

Question 35

Which of the following belong to the picophytoplankton, the very small phytoplankton?
• Diatoms
• Dinoflagellates
• Coccolithophorids
• Synechococcus
• All of the above

Answer 35

Synechococcus

Question 36

the principle that states that one limiting factor is primarily responsible for limiting the growth rate of the plant or phytoplankton cell is called:

Answer 36

Liebig’s Law of the Minimum

Question 37

Biologically important elements that are required in greater quantities by phytoplankton are generally referred to as

Answer 37

Macronutrients

Question 38

When rates of vertical mixing are high, phytoplankton will experience:

Answer 38

…

Question 39

Regions of the world ocean with high nitrate and low chlorophyll concentrations are designated as

Answer 39

HNLC regions

Question 40

Carbon dioxide enters the process of photosynthesis during the

Answer 40

Water splitting reactions?

Question 41

Which longitudinal lines serve are boundaries for Orange County?

Answer 41

The Tropic of Cancer and the Arctic Circle