Deck 12: Eukaryotic Microorganisms and Parasites

Question 1

Protozoa that move using flagella are members of the _____.

A)mastigophorans
B)amebozoans
C)apicomplexans
D)ciliates
E)ciliophorans

Answer 1

A

Question 2

Which of the following is not an example of a plantlike protist

A)Euglenoids
B)Diatoms
C)Amebozoans
D)Dinoflagellates

Answer 2

C

Question 3

Organisms that are normally free living but can also obtain nutrients from a host are called _____.

A)facultative parasites
B)obligate parasite
C)biological vectors
D)accidental parasites

Answer 3

A

Question 4

Parasites which live within the bodies of other organisms are classified as _____.

A)accidental parasite
B)endoparasites
C)facultative parasites
D)ectoparasites

Question 5

A mosquito that lives on a host and is itself infected with the protozoa responsible for malaria is an example of:

A)temporary parasitism
B)permanent parasitism
C)hyperparasitism
D)facultative parasitism

Question 6

Parasites having both male and female reproductive organs are known as _____.

A)obligate parasites
B)schizonts
C)hermaphrodites
D)accidental parasites

Question 7

The Anopheles mosquito carries the disease malaria,as the parasite must carry out part of its life cycle within the mosquito.In this case,the mosquito is a/an:

A)permanent parasite
B)biological vector
C)mechanical vector
D)accidental host

Question 8

The major characteristic used to divide protozoans into four major groups is _____.

A)type of feeding behavior
B)habitat
C)reproduction strategies
D)type of motility

Question 9

Animal-like protists include _____.

A)water molds
B)apicomplexans
C)diatoms
D)dinoflagellates

Question 10

Which of the following organisms is a saprophyte

A)Euglenoids
B)Amebozoans
C)Slime molds
D)Diatoms

Question 11

A leech that feeds on a person swimming in a pond then releases itself from the skin to return to the water is an example of a/an:

A)endoparasite
B)permanent parasite
C)temporary parasite
D)reservoir host

Question 12

All protists:

A)are photosynthetic
B)have a true nucleus
C)have cell walls
D)are parasites

Question 13

An organism that lives at the expense of another organism is a _____.

A)mutualistic
B)commensal
C)parasite
D)symbiont

Question 14

A host in which a parasite reproduces sexually is a _____.

A)primary host
B)definitive host
C)intermediate host
D)reservoir host

Question 15

Organisms that obtain nutrients from decaying matter are called _____.

A)autotrophs
B)heterotrophs
C)saprophytes
D)lithophytes

Question 16

Euglenoids contain a stigma,the purpose of which is to:

A)control the passage of molecules in and out of the cell
B)communicate with other cells
C)allow the protist to move toward light for photosynthesis
D)digest nutrients

Question 17

Diatoms possess:

A)photosynthetic pigments other than chlorophyll
B)an outer layer containing silicates
C)abrasive qualities
D)all of these

Question 18

Protozoa are always:

A)multicellular
B)parasitic
C)heterotrophic
D)photosynthetic

Question 19

Protists may be described according to whether they resemble organisms in each of the following kingdoms except:

A)Bacteria
B)Fungi
C)Animals
D)Plants

Question 20

Many protists have shells of calcium carbonate called _____.

A)exoskeletons
B)carapaces
C)tests
D)plastrons

Question 21

One major difference between flatworms and roundworms is that _____.

A)roundworms are never parasites
B)flatworms are never parasites
C)roundworms have a pseudocoelom
D)flatworms don't infect humans

Question 22

Which of the following statements about protists is true

A)The protozoan responsible for malaria is classified as a ciliate.
B)Eutrophication occurs when protists stop growing in a body of water.
C)Amoeba move by means of cilia.
D)All protists are eukaryotic.

Question 23

Cells walls in fungi are often made of _____.

A)cellulose
B)peptidoglycan
C)chitin
D)calcium carbonate

Question 24

Flatworms are known scientifically as _____.

A)platyhelminths
B)cestodes
C)nematodes
D)arachnids

Question 25

Tapeworms consist of a head end and a long chain of hermaphroditic segments,each of which is called a ________.

A)scolex
B)proglottid
C)sporocyst
D)cysticercus

Question 26

Wuchereria bancrofti is the causative agent of _____.

A)trichinosis
B)malaria
C)sleeping sickness
D)elephantitis

Question 27

A typical fungus consists of a mass called a ________ made up of many threadlike structures called ________.

A)thallus,mycelium
B)mycelium,hyphae
C)hyphae,mycelium
D)mycelium,thallus

Question 28

Fungi are never _____.

A)saprophytes
B)obligate parasites
C)facultative parasites
D)heterotrophs

Question 29

Malaria is a result of infection by a/an _____.

A)mastigophoran
B)amebozoan
C)apicomplexan
D)ciliophoran

Question 30

The largest group of protozoa is the _____.

A)mastigophorans
B)amebozoa
C)apicomplexans
D)ciliophora

Question 31

Helminths:

A)are all obligate parasites
B)have left and right halves that are mirror images
C)are a type of protozoa
D)are all hermaphroditic

Question 32

Fungi with no known sexual stage (in their life cycle)are assigned to the phylum _____.

A)zygomycota
B)ascomycota
C)basidiomycota
D)deuteromycota

Question 33

Protozoans found in the human intestinal tract would most likely be _____.

A)mastigophorans
B)amebozoans
C)apicomplexans
D)ciliophorans

Question 34

Mycology is defined as the study of _____.

A)microbes
B)protists
C)fungi
D)plants

Question 35

Members of the phylum Ascomycota produce asexual spores called ________ .

A)antheridia
B)archegonia
C)ascogonia
D)conidia

Question 36

Undercooked pork is most likely to pass along _____.

A)Schistosoma
B)Echinococcus
C)Wuchereria
D)Trichinella

Question 37

Fungi can be differentiated from plants by the fact that:

A)fungi are all unicellular,plants are all multicellular
B)fungi do not have a cell wall,plants have a cell wall
C)fungi cannot photosynthesize,plants can photosynthesize
D)fungi are prokaryotic,plants are eukaryotic

Question 38

The proper order of development of Plasmodium from the time of infection to the parasitization of red blood cells is:

A)trophozoite → merozoite → sporozoite
B)sporozoite → merozoite → trophozoite
C)trophozoite → sporozoite → merozoite
D)sporozoite → trophozoite → merozoite

Question 39

Bread molds are members of the phylum _____.

A)zygomycota
B)ascomycota
C)basidiomycota
D)deuteromycota

Question 40

The only non-motile group of protozoans is the _____.

A)mastigophorans
B)amebozoans
C)apicomplexans
D)ciliophorans

Question 41

This organism moves by:

A)flagella
B)cilia
C)pseudopodia
D)cannot move

Question 42

Which factor(s)has/have contributed to malaria's recent comeback

A)Failure to vaccinate people living in susceptible areas
B)Emergence of DDT resistant mosquitoes
C)Environmental changes in developing countries
D)Two of these factors

Question 43

This organism moves by:

A)pseudopodia
B)cilia
C)flagella
D)microtubules

Question 44

A mechanical vector:

A)lives on or in another organism at the expense of the host
B)simply carries microbes on the outside of its body
C)reproduces as an asexual form in this host
D)infects by mechanical insertion of a syringe

Question 45

Arachnids have ________ legs and include ________.

A)six,lice,fleas and flies
B)six,ticks and mites
C)eight,lice,fleas and flies
D)eight,ticks and mites

Question 46

Which of the following statements about Fungi is true

A)sexual stages have all been observed
B)are the biggest organisms on earth
C)live in the intestine or circulatory system of hosts
D)are all multicellular

Question 47

Arthropods are responsible for transmitting ________ pathogens.

A)viral
B)bacterial
C)protozoan
D)viral,bacterial and protozoan

Question 48

This organism belongs to the:

A)protists
B)arthropods
C)helminths
D)fungi

Question 49

The Guinea worm is carried by:

A)ticks
B)insects
C)arachnids
D)crustaceans

Question 50

A tapeworm's hydatid cyst:

A)contains only one cysticercus or bladder worm
B)migrates to the host's digestive gland
C)can enlarge and develop many tapeworm heads
D)develops into mature flukes