Deck 18: Evolution of Protists

Question 1

If you were studying diseases caused by protozoans which are not transmitted by insects,you might study any of these diseases except which one?

A)Leishmaniasis
B)Malaria
C)Giardiasis
D)Trypanosoma cruzi
E)Trypanosoma brucei

Answer 1

C
Explanation: Giardiasis is not transmitted by an insect,but by drinking contaminated water.

Question 2

A biologist is doing research on African sleeping sickness which would involve study of what organism?

A)Giardia
B)Trichchomonas
C)Trypanosoma
D)Euglena
E)Paramecium

Answer 2

C
Explanation: African sleeping sickness is caused by the flagellated protozoan Trypanosoma brucei.

Question 3

A biologist is studying protists that have a calcium carbonate shell with holes so pseudopods can extend outward.Based on this information you would conclude that he or she is studying which of the following?

A)Foraminiferans
B)Radiolarians
C)Amoeboids
D)Apicomplexans
E)Diatoms

Answer 3

A
Explanation: In the foraminiferans,the calcium carbonate,shell,or test,is often multichambered.Threadlike pseudopods extend through openings in the test,which covers the plasma membrane.

Question 4

Which of the following statements about the origin of eukaryotic cells is least accurate?

A)The mitochondria came from aerobic bacteriA.
B)Eukaryotic cells are the product of endosymbiosis.
C)The chloroplast came from cyanobacteria.
D)Eukaryotic cells evolved from prokaryotes.
E)The chloroplast came from aerobic bacteria.

Question 5

Which of the following is a sexually transmitted disease?

A)Giardia
B)Trichchomonas
C)Trypanosoma
D)Euglena
E)Paramecium

Question 6

Figure:
This figure shows the anatomy of a Euglena.What does "e" represent?

A)chloroplast
B)nucleus
C)flagellum
D)contractile vacuole
E)eyespot

Question 7

If you were studying extensions that form when cytoplasm streams in a particular direction you would be studying

A)contractile vacuoles.
B)pseudopods.
C)food vacuoles.
D)the nucleolus.
E)the mitochondria.

Question 8

Figure:
This figure shows the anatomy of a Euglena.What does "d" represent?

A)chloroplast
B)nucleus
C)flagellum
D)contractile vacuole
E)eyespot

Question 9

The organism which causes malaria is

A)a virus.
B)a bacterium.
C)a protist.
D)an Archaean.
E)a fungus.

Question 10

Of the following statements about protists,which one is least useful in defining protists or groups of protists?

A)They can be photosynthetic.
B)They can be heterotrophic.
C)They have plasma membranes.
D)They can reproduce sexually.
E)They can reproduce asexually.

Question 11

Figure:
This figure shows the anatomy of a Euglena.What does "a" represent?

A)chloroplast
B)nucleus
C)flagellum
D)contractile vacuole
E)eyespot

Question 12

If you were writing a paper on the beneficial aspects of the protists for humans and the environment,which of the following would be excluded from your paper?

A)They have a parasitic relationship with some organisms
B)They can give off oxygen
C)They can be a major component of plankton
D)They can form symbiotic relationships with corals
E)They serve as a food source for many organisms

Question 13

In comparing green algae and ciliates,which of the following terms would not apply to the the ciliates?

A)free-living
B)parasitic
C)sessile
D)colonial
E)autotrophic

Question 14

If you were studying euglenoids,you would most likely find them

A)in shallow saltwater ecosystems.
B)living within animals.
C)in the soil.
D)in deep saltwater ecosystems.
E)in freshwater ecosystems.

Question 15

You have discovered a previously unknown protist,and,in deciding to use the most modern methods in classifying it,you would look at

A)whether it is parasitic or free-living.
B)its DNA and/or RNA.
C)whether it is heterotrophic or autotrophiC.
D)whether it is sexual or asexual.
E)whether it is unicellular or multicellular.

Question 16

The main function of the trichocysts of a ciliate is

A)chlorophyll production.
B)synthesis of carbohydrates.
C)eliminating excess water.
D)to be photoreceptors to detect light.
E)defense and capturing prey.

Question 17

All diseases caused by protozoans must be transmitted by a vector.

Question 18

In comparing green algae with trypanosomes,which of the following terms would not be associated with the trypanosomes?

A)heterotrophic
B)unicellular
C)flagella
D)autotrophic
E)parasite

Question 19

A hiker fills up his canteen from a mountain pond in the western United States.If he does not treat the water before drinking it,he runs the risk of being infected by which of the following?

A)Giardia
B)Trichchomonas
C)Trypanosoma
D)Euglena
E)Paramecium

Question 20

Most of the sediment that accumulates on the ocean floor is due to

A)dead amoeboids and radiolarians.
B)dead foraminiferans and ciliates.
C)dead flagelletes and euglenoids.
D)dead foraminiferans and radiolarians.
E)dead slime molds and radiolarians.

Question 21

In comparing diatoms with dinoflagellates which term would be applied to diatoms but not dinoflagellates?

A)red tides
B)valves
C)flagella
D)phytoplankton
E)bioluminescence

Question 22

Figure:
This figure shows the anatomy of a Paramecium.What does "c" represent?

A)micronucleus
B)trichocyst
C)contractile vacuole
D)oral grove
E)food vacuole

Question 23

A biologist is studying a multinucleated,cytoplasmic mass of cells which creeps along,phagocytizing plant material as it moves,which would be best termed a(n)

A)cellular slime mold.
B)water mold.
C)amoeboid.
D)plasmodial slime molD.
E)radiolarian.

Question 24

A biologist is looking through a microscope at a unicellular protist which appears to have two halves and is a golden-brown color,which can be identified as

A)a diatom.
B)a red alga.
C)a brown alga.
D)a dinoflagellate.
E)a green alga.

Question 25

If you were studying brown algae,you could be studying which of the following topics?

A)phytoplankton
B)agar and carageenan
C)diatoms
D)dinoflagellates
E)kelps

Question 26

In comparing amoebae and apicomplexans,which of the following would not be associated with any of the apicomplexans?

A)spore-forming
B)free-living
C)heterotrophic
D)parasitic
E)malaria

Question 27

In comparing dioflagellates and diatoms,which term does not apply to the diatoms?

A)phytoplankton
B)unicellular
C)cellulose plates
D)autotrophic
E)silica valves

Question 28

Comparing different types of seaweeds and other aquatic algae,which alga is a member of a non-green group of algae?

A)Ulva
B)Volvox
C)Laminaria
D)Chlamydomonas
E)Spirogyra

Question 29

Which of the following would be used to make agar?

A)green algae
B)diatoms
C)brown algae
D)dinoflagellates
E)red algae

Question 30

You observe a dead fish floating in a pond and notice that it has a "furry" growth on and around its body.After consulting your trusty field guide you determine that the "furry" growth is

A)a cellular slime mold.
B)an amoeboid slime mold.
C)a plasmodial slime mold.
D)a brown molD.
E)a water mold.

Question 31

The algae that help build coral reefs are

A)diatoms.
B)radiolarians.
C)green algae.
D)red algae.
E)brown algaE.

Question 32

If you were writing a paper on red algae,you could be writing about which of the following topics?

A)alginate
B)Chlamydomonas
C)agar
D)giant kelps
E)stoneworts

Question 33

You arrive at your favorite beach only to find it closed to swimmers due to a red tide.This phenomenon is caused by

A)diatoms.
B)foraminiferans.
C)unicellular green algae.
D)dinoflagellates.
E)radiolarians.

Question 34

Which of the following protozoans causes malaria?

A)Trypanosoma
B)Giardia
C)Plasmodium
D)Anopheles
E)Toxoplasma

Question 35

You are in a boat just off the coast of California and notice some extremely large seaweed floating on the surface of the ocean.Based on what you learned in your Biology class you would conclude that you are looking at

A)brown algae.
B)green algae.
C)red algae.
D)diatoms.
E)dinoflagellates.

Question 36

What is a use that humans have for brown algae?

A)to make agar for bacterial culture
B)to make fertilizer
C)to make antibiotics
D)to produce limestone
E)to use as fuel

Question 37

You are looking through a microscope at a green alga sample taken from a pond.The alga is unicellular and has two flagella.Based on this information you would conclude that you are probably looking at which alga?

A)Ulva
B)Volvox
C)Laminaria
D)Chlamydomonas
E)Spirogyra

Question 38

Which algae share most of the characteristics of plants?

A)dinoflagellates
B)diatoms
C)red
D)brown
E)green

Question 39

Figure:
This figure shows the anatomy of a Paramecium.What does "e" represent?

A)micronucleus
B)trichocyst
C)contractile vacuole
D)oral grove
E)food vacuole

Question 40

The valves of a diatom are made of silica.

Question 41

Which name of a group of protists is paired with an important term from another group of protists?

A)ameobozoans--zooplankton
B)radiolarians--silica tests
C)foraminiferans--pseudopods
D)amoeboids--cilia
E)foraminiferans--calcium carbonate tests

Question 42

In which of the following would you observe an alternation of generations?

A)Volvox
B)Chlamydomonas
C)Diatoms
D)Dinoflagellates
E)Ulva

Question 43

You are at the beach and collect some "leafy"-looking multicellular green algae.When you return home you consult a field guide on marine organisms and determine that you collected

A)UlvA.
B)Volvox.
C)Laminaria.
D)Chlamydomonas.
E)Spirogyra.

Question 44

Which organism has chloroplasts containing pyrenoids?

A)Giardia
B)Euglena
C)Trypanosoma
D)Trichomonas
E)Amoeba

Question 45

How do we know that stoneworts are close relatives of plants?

A)There are similar DNA sequences between stoneworts and plants.
B)Calcium carbonate deposits are found on stoneworts.
C)Both stoneworts and plants have a diploid life cycle.
D)Stoneworts are multicellular.
E)Stoneworts have roots,stems,and leaves.

Question 46

Among protists,haploid reproductive cells that are often resistant to adverse conditions are termed

A)spores
B)apicomplexes
C)pyrenoids
D)flagella
E)trichocysts

Question 47

Which statement would be true of a ciliate but not of the protozoan that causes malaria?

A)It is an apicomplexan.
B)It is spread to humans through mosquito bites.
C)Gamete fusion occurs within the body of the female mosquito.
D)Gametocytes are the stage of the life cycle taken up from an infected human by a feeding mosquito.
E)All stages of the life cycle are motilE.

Question 48

Spirogyra use a type of sexual exchange called

A)budding.
B)aggregation.
C)fruiting body.
D)conjugation.
E)gametogenesis.

Question 49

If you wanted to write a paper about an organism which exhibits a haploid life cycle,which alga could be the topic of your paper?

A)Spirogyra
B)Volvox
C)Ulva
D)Chlamydomonas
E)Laminaria

Question 50

An example of a colonial green alga is

A)UlvA.
B)Volvox.
C)Laminaria.
D)Chlamydomonas.
E)Spirogyra.