Question 1

Trichonympha is a unicellular flagellated protist that lives within termites and allows the termite to be able to "digest" wood.Trichonympha is which of the following?

Accepted Answer

A)  An apicomplexan
B)  An algae
C)  A slime mold
D)  A diatom
E)  A protozoa D

Question 2

Golden algae,diatoms,and brown algae contain yellowish pigments.

Accepted Answer

A) True 
 B)False

Question 3

If S.niagarae did evolve into S.yellowstonensis this would be an example of which of the following?

Accepted Answer

A)  Directional selection
B)  Stabilizing selection
C)  Disruptive selection
D)  Artificial selection

Question 4

DNA sequence evidence suggests that plants,fungi,and animals arose from different lineages of unicellular protists.This suggests which of the following?

Accepted Answer

A)  Protists evolved before the other three kingdoms
B)  Early ancestors to plants, fungi, and animals could interbreed
C)  Multicellular organisms only arose once in evolutionary history
D)  All unicellular organisms are now extinct
E)  The animals, plant, and fungal kingdoms contain some single celled organisms A

Question 5

Euglena have chloroplasts and can perform phagocytosis.Euglena would be considered which of the following?

Accepted Answer

A)  Autotrophs
B)  Heterotrophs
C)  Autotrophs and heterotrophs
D)  Detritovores
E)  Heterotrophs and detritovores

Question 6

Diatoms are a type of algae,but with a hard silica shell.Which of the following structures would you expect to find directly underneath the silica shell?

Accepted Answer

A)  A cell wall
B)  A plasma membrane
C)  A nucleus
D)  A chloroplast
E)  A mitochondria

Question 7

One reason that malaria continues to be the world's most significant infectious disease is because Plasmodium falciparum continues to develop resistance to the drugs that have been used to treat malaria.This is due to which of the following?

Accepted Answer

A)  Some Plasmodium falciparum have pre-existing mutations that make them resistant to antimalarial drugs
B)  Some mosquitoes have pre-existing mutations that make them resistant to antimalarial drugs
C)  Some people have pre-existing mutations that make them resistant to antimalarial drugs
D)  The antimalarial drugs cause mutations to occur in Plasmodium falciparum
E)  The antimalarial drugs cause mutations to occur in the mosquito

Question 8

Trichonympha is a unicellular flagellated protist that lives within termites and allows the termite to be able to "digest" wood.Trichonympha is which of the following?

Accepted Answer

A)  An autotroph
B)  A heterotroph and autotroph
C)  A detritovore
D)  A heterotroph
E)  A heterotroph and detritovore

Question 9

The movement toward a chemical stimulus is called chemotaxis.

Accepted Answer

A) True 
 B)False  True

Question 10

The white cliffs of Dover are composed mostly of foraminiferans shells.These organisms move by pseudopodia and feed by phagocytosis.Foraminiferan shells are made of which of the following?

Accepted Answer

A)  Cellulose
B)  Calcium carbonate
C)  Chitin
D)  Peptidoglycan
E)  Silica

Question 11

Malaria is caused by Plasmodium falciparum,a non-motile protist that contains a cluster of microtubules at one end of the cell.Once injected into the blood stream,these microtubules are used to attach to red blood cells.Malaria is transmitted by:

Accepted Answer

A)  The bite of a tsetse fly
B)  The bite of a mosquito
C)  The bite of a sand fly
D)  The bite of a kissing bug
E)  Ingesting food

Question 12

The Irish potato famine in the mid 1840s was caused by which heterotrophic protist decomposer that secreted digestive enzymes onto potatoes?

Accepted Answer

A)  A water mold
B)  A red algae
C)  A nematode worm
D)  A protozoan
E)  A fungus

Question 13

Chlamydomonas is multicellular,produces motile haploid sperm,and is photosynthetic.Chlamydomonas is which of the following?

Accepted Answer

A)  A slime mold
B)  An apicomplexan
C)  A diatom
D)  A protozoa
E)  A green algae

Question 14

Malaria is caused by Plasmodium falciparum,a non-motile protist that contains a cluster of microtubules at one end of the cell.Once injected into the blood stream,these microtubules are used to attach to red blood cells.In areas of the world where malaria is endemic people have a relatively high incidence of the allele for:

Accepted Answer

A)  Sickle cell
B)  Blue eyes
C)  Cystic fibrosis
D)  Mental retardation
E)  Hemophilia

Question 15

In malaria,Plasmodium falciparum grow inside of which human cells?

Accepted Answer

A)  Liver and red blood cells
B)  Liver cells
C)  Red blood cells
D)  Intestinal cells
E)  Liver and intestinal cells

Question 16

Some protozoa move by false feet called:

Accepted Answer

A)  Flagella
B)  Pseudopodia
C)  Cilia
D)  Antennae
E)  Spikes

Question 17

Based on the theory of endosymbiosis,which of the following would you expect to find in a chloroplast?

Accepted Answer

A)  Cellulose
B)  A nucleus
C)  Silica
D)  DNA
E)  A mitochondria

Question 18

A substance produced by brown algae that is used as an emulsifying and thickening agent in many foods and other products is:

Accepted Answer

A)  Agar
B)  Red ooze
C)  Gelatin
D)  Carageenan
E)  Algin

Question 19

A pregnant woman was told by her doctor that while she is pregnant she might want to let someone else care for her cats so she would not contract toxoplasmosis through which mechanism?

Accepted Answer

A)  Cats may have fleas that transmit toxoplasmosis
B)  Scratches from infected claws
C)  Exposure to infected cat feces
D)  Infection from saliva
E)  Infection from mice the cat may bring into the house

Question 20

Protists:

Accepted Answer

A)  Are prokaryotes
B)  Do not have a nucleus
C)  Do not have membrane-bounded organelles
D)  Are eukaryotes
E)  Have a cell wall

Exam 17: Protists

Trichonympha is a unicellular flagellated protist that lives within termites and allows the termite to be able to "digest" wood.Trichonympha is which of the following?

Correct Answer
verified
D

Golden algae,diatoms,and brown algae contain yellowish pigments.

Correct Answer
verified

If S.niagarae did evolve into S.yellowstonensis this would be an example of which of the following?

Correct Answer
verified

DNA sequence evidence suggests that plants,fungi,and animals arose from different lineages of unicellular protists.This suggests which of the following?

Correct Answer
verified
A

Euglena have chloroplasts and can perform phagocytosis.Euglena would be considered which of the following?

Correct Answer
verified

Diatoms are a type of algae,but with a hard silica shell.Which of the following structures would you expect to find directly underneath the silica shell?

Correct Answer
verified

One reason that malaria continues to be the world's most significant infectious disease is because Plasmodium falciparum continues to develop resistance to the drugs that have been used to treat malaria.This is due to which of the following?

Correct Answer
verified

Trichonympha is a unicellular flagellated protist that lives within termites and allows the termite to be able to "digest" wood.Trichonympha is which of the following?

Correct Answer
verified

The movement toward a chemical stimulus is called chemotaxis.

Correct Answer
verified
True

The white cliffs of Dover are composed mostly of foraminiferans shells.These organisms move by pseudopodia and feed by phagocytosis.Foraminiferan shells are made of which of the following?

Correct Answer
verified

Malaria is caused by Plasmodium falciparum,a non-motile protist that contains a cluster of microtubules at one end of the cell.Once injected into the blood stream,these microtubules are used to attach to red blood cells.Malaria is transmitted by:

Correct Answer
verified

The Irish potato famine in the mid 1840s was caused by which heterotrophic protist decomposer that secreted digestive enzymes onto potatoes?

Correct Answer
verified

Chlamydomonas is multicellular,produces motile haploid sperm,and is photosynthetic.Chlamydomonas is which of the following?

Correct Answer
verified

Correct Answer
verified

In malaria,Plasmodium falciparum grow inside of which human cells?

Correct Answer
verified

Some protozoa move by false feet called:

Correct Answer
verified

Based on the theory of endosymbiosis,which of the following would you expect to find in a chloroplast?

Correct Answer
verified

A substance produced by brown algae that is used as an emulsifying and thickening agent in many foods and other products is:

Correct Answer
verified

A pregnant woman was told by her doctor that while she is pregnant she might want to let someone else care for her cats so she would not contract toxoplasmosis through which mechanism?

Correct Answer
verified

Protists:

Correct Answer
verified

Exam 17: Protists

Trichonympha is a unicellular flagellated protist that lives within termites and allows the termite to be able to "digest" wood.Trichonympha is which of the following?

Correct AnswerverifiedD

Golden algae,diatoms,and brown algae contain yellowish pigments.

Correct AnswerverifiedShow Answer

If S.niagarae did evolve into S.yellowstonensis this would be an example of which of the following?

Correct AnswerverifiedShow Answer

DNA sequence evidence suggests that plants,fungi,and animals arose from different lineages of unicellular protists.This suggests which of the following?

Correct AnswerverifiedA

Euglena have chloroplasts and can perform phagocytosis.Euglena would be considered which of the following?

Correct AnswerverifiedShow Answer

Diatoms are a type of algae,but with a hard silica shell.Which of the following structures would you expect to find directly underneath the silica shell?

Correct AnswerverifiedShow Answer

One reason that malaria continues to be the world's most significant infectious disease is because Plasmodium falciparum continues to develop resistance to the drugs that have been used to treat malaria.This is due to which of the following?

Correct AnswerverifiedShow Answer

Trichonympha is a unicellular flagellated protist that lives within termites and allows the termite to be able to "digest" wood.Trichonympha is which of the following?

Correct AnswerverifiedShow Answer

The movement toward a chemical stimulus is called chemotaxis.

Correct AnswerverifiedTrue

The white cliffs of Dover are composed mostly of foraminiferans shells.These organisms move by pseudopodia and feed by phagocytosis.Foraminiferan shells are made of which of the following?

Correct AnswerverifiedShow Answer

Malaria is caused by Plasmodium falciparum,a non-motile protist that contains a cluster of microtubules at one end of the cell.Once injected into the blood stream,these microtubules are used to attach to red blood cells.Malaria is transmitted by:

Correct AnswerverifiedShow Answer

The Irish potato famine in the mid 1840s was caused by which heterotrophic protist decomposer that secreted digestive enzymes onto potatoes?

Correct AnswerverifiedShow Answer

Chlamydomonas is multicellular,produces motile haploid sperm,and is photosynthetic.Chlamydomonas is which of the following?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In malaria,Plasmodium falciparum grow inside of which human cells?

Correct AnswerverifiedShow Answer

Some protozoa move by false feet called:

Correct AnswerverifiedShow Answer

Based on the theory of endosymbiosis,which of the following would you expect to find in a chloroplast?

Correct AnswerverifiedShow Answer

A substance produced by brown algae that is used as an emulsifying and thickening agent in many foods and other products is:

Correct AnswerverifiedShow Answer

A pregnant woman was told by her doctor that while she is pregnant she might want to let someone else care for her cats so she would not contract toxoplasmosis through which mechanism?

Correct AnswerverifiedShow Answer

Protists:

Correct AnswerverifiedShow Answer

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D

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A

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True

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