Mader's Concepts in Biology, First Edition

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Sylvia S. Mader

Chapter 17

Question 1

The organism which causes malaria is:

A. a virus

B. a bacteria

C. a protist

D. an Archaea

E. a fungi

Question 2

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

A. true

B. false

Question 3

Which of the following is not a disease caused by a protozoan?

A. malaria

B. giardiasis

C. amoebic dysentery

D. bubonic plague

E. African sleeping sickness

Question 4

If you were studying diseases caused by protozoans which are not transmitted by insects, which of the following diseases would you not be studying?

A. leishmaniasisB. malariaC. giardiasisD. Trypanosoma cruziE. Trypanosoma brucei

Question 5

Which of the following statements about the origin of eukaryotic cells is not true?

A. the mitochondria came from aerobic bacteria

B. they are the product of endosymbiosis

C. the chloroplast came from cyanobacteria

D. they evolved from prokaryotes

E. the chloroplast came from aerobic bacteria

Question 6

Of the following statements about protists, which one is false?

A. they can be photosynthetic

B. they can be heterotrophic

C. only multicellular protists have a nucleus

D. they can reproduce sexually

E. they can reproduce asexually

Question 7

If you were writing a paper on the beneficial aspects of the protists for humans and the environment, which of the following would not be part of your paper?

A. they have a parasitic relationship with some animals and humans

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 8

In which of the following ways are protists being classified today?

A. whether they are parasitic or free-living

B. DNA and RNA

C. whether they are heterotrophic or autotrophic

D. whether they are sexual or asexual

E. whether they are unicellular or multicellular

Question 9

Which of the following terms would not be associated with the phylum Zoomastigophora?

A. heterotrophic

B. unicellular

C. symbiotic

D. autotrophic

E. parasite

Question 10

A biologist is doing research on the African sleeping sickness. Based on this information you would conclude that he or she is studying which of the following?

A. GiardiaB. TrichchomonasC. TrypanosomaD. EuglenaE. Paramecium

Question 11

Which of the following is a sexually transmitted disease?

A. Giardia

B. Trichchomonas

C. Trypanosoma

D. Euglena

E. Paramecium

Question 12

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 13

If you were studying members of the phylum Euglenophyta, you would most likely find them in:

A. shallow saltwater ecosystems

B. living within animals

C. in the soil

D. deep saltwater ecosystems

E. freshwater ecosystems

Question 14

Which of the following terms would not be used to describe the phylum Ciliophora?

A. free-living

B. parasitic

C. sessile

D. colonial

E. autotrophic

Question 15

The main function of the trichocysts is:

A. chlorophyll production

B. synthesis of carbohydrates

C. eliminating excess water

D. to be a photoreceptor to detect light

E. defense and capturing prey

Question 16

Which of the following protozoans causes malaria?

A. Trypanosoma

B. Giardia

C. Plasmodium

D. Anopheles

E. Toxoplasma

Question 17

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 18

The amoeboids belong to the phylum:

A. Foraminifera

B. Ciliophora

C. Rhizopoda

D. Apicomplexa

E. Myxomycota

Question 19

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

A. Foraminifera

B. Ciliophora

C. Rhizopoda

D. Apicomplexa

E. Myxomycota

Question 20

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

A. dead amoeboids and radiolarians

B. dead foraminiferans and ciliophores

C. dead zoomastigophorans and euglenas

D. dead foraminiferans and radiolarians

E. dead rhizopods and radiolarians

Answer Key – Chapter 171. C2. B3. D4. C5. E6. C7. A8. B9. D10. C

11. B12. A13. E14. E15. E16. C17. B18. C19. A20. D