Deck 6: Multicellular Primary Producers: Seaweeds and Plants

Question 1

Salt-tolerant plants such as salt-marsh plants are called:

A)Mangroves.
B)Angiosperms.
C)Gametophytes.
D)Halophytes.
E)Sporophytes.

Answer 1

D

Question 2

Green algaes are characterized by:

A)Being prokaryotic.
B)Being mostly marine.
C)Having chlorophyll plus red pigments.
D)Having true roots.
E)Having pigments similar to land plants.

Answer 2

E

Question 3

The most complex and largest of all the macroalgaes/seaweeds is included among one of these groups:

A)Green algae.
B)Brown algae.
C)Coralline red algae.
D)Calcareous green algae.
E)Red algae.

Answer 3

B

Question 4

The root-like,anchoring structure of many macroalgae/seaweeds is called the:

A)Blade
B)Pneumatocyst
C)Thallus
D)Holdfast
E)Stipe

Question 5

Algaes are included among the Protista.Some biologists,however,place them instead in the:

A)Kingdom Animalia.
B)Kingdom Fungi.
C)Kingdom Plantae.
D)Prokaryotes.
E)Seagrasses.

Question 6

Marine flowering plants can be best differentiated from macroalgaes/seaweeds by the fact that the marine flowering plants:

A)Have smaller flowers.
B)Must be covered by water at all times.
C)Must reproduce in the water.
D)Can only live along rivers near the coast.
E)Reproduce by producing seeds.

Question 7

The thallus of a macroalgae/seaweed refers to its:

A)Anchoring structure.
B)Gas-filled bladders.
C)Stem-like part of the body.
D)Complete body.
E)Leaf-like structures,or blades.

Question 8

Algin is a natural product extracted from seaweeds.It is used as:

A)An emulsifier in processed foods.
B)A paper substitute.
C)An insecticide.
D)An explosive.
E)An antibiotic.

Question 9

Macroalgae/seaweeds can be best differentiated from true plants because macroalgae/seaweeds:

A)Are photosynthetic.
B)Are prokaryotic.
C)Have no true roots,leaves,or stems.
D)Have no chlorophyll.
E)Are mostly unicellular.

Question 10

The Sargasso Sea is found in the:

A)Pacific Ocean.
B)Black Sea.
C)Indian Ocean.
D)Atlantic Ocean.
E)Arctic Ocean.

Question 11

Algaes and many bacteria are primary producers.In contrast to the types of the bacteria that are primary producers,however,all types of algaes are:

A)Are photosynthetic.
B)Are chemosynthetic.
C)Are prokaryotic.
D)Have true leaves and roots.
E)Are unicellular.

Question 12

A gelatinous substance extracted from algaes and used as a growth media in microbiology labs is:

A)Algin.
B)Pollen.
C)Agar.
D)Carrageenan.

Question 13

Encrusting algae are commonly found living:

A)In the plankton.
B)On rocks.
C)As parasites.
D)As endophytes.
E)On the water surface.

Question 14

Coralline red algae receive this name due to their ability to:

A)Emit light.
B)Accumulate calcium carbonate.
C)Be responsible for red tides.
D)Live together with corals in coral reefs.
E)Be parasites of other algae.

Question 15

Macroalgaes can be best differentiated from the phytoplankton because the marcoalgaes:

A)Are eukaryotic.
B)Are photosynthetic.
C)Have true roots.
D)Are mostly multicellular.
E)Have true leaves.

Question 16

Reproduction in seaweeds can be very complex.It generally includes:

A)Only sexual reproduction.
B)Only asexual reproduction.
C)Both sexual and asexual reproduction.
D)Only mitosis.
E)Only meiosis.

Question 17

Which one of these groups of algae is found mostly in fresh water and on land,thus,only a small number of this group are actually marine:

A)Green algae.
B)Brown algae.
C)Kelps.
D)Red algae.
E)Coralline red algae.

Question 18

The group of macroalgaes/seaweeds with the largest number of species is the:

A)Green algae.
B)Brown algae.
C)Kelps.
D)Red algae.
E)Coralline algae.

Question 19

Marine vascular flowering plants include all of the following except:

A)Mangroves.
B)Kelps.
C)Seagrasses.
D)Cord grass.
E)Surf grass.

Question 20

The stem-like structure of a macroalgae/seaweed such as kelp is called the:

A)Blade.
B)Pneumatocyst.
C)Stipe.
D)Holdfast.
E)Thallus.

Question 21

Mangroves live in coastal waters that:

A)Are well protected from strong wave action.
B)Have high salinity at all times.
C)Are located in temperate regions with wide seasonal temperature fluctuations.
D)Have high amounts of nutrients.
E)Are rocky with no sedimentation.

Question 22

Which of the following areas are associated with myths and legends of sea monsters and ghost ships?

A)The California kelp forrests
B)The salt marshes of the Middle Atlantic states
C)The Sargasso Sea
D)Mangrove forests along the Amazon River delta