Question 1

Cilia are structures for motility found primarily in ________.

Accepted Answer

A)   protozoa
B)   algae
C)   fungi
D)   bacteria
E)   All of the choices are correct.F) A) and D)
G) A) and E)

Question 2

Fungal spores differ from bacterial endospores in that ________.

Accepted Answer

A)   fungal spores are reproductive, whereas bacterial endospores are for survival
B)   fungal spores are a result of sexual reproduction only, whereas bacterial endospores are a result of binary fission
C)   bacterial endospores are reproductive, whereas fungal spores are for survival
D)   fungal spores result from binary fission and bacterial endospores result from meiosisE) None of the above
F) All of the above

Question 3

At the lakeside, public health officials post signs warning the public to avoid swimming in the lake. Acanthamoeba and other protozoa are able to enter a resting state when environmental conditions are unfavorable. This stage of the life cycle is called a(n)  ________.

Accepted Answer

A)   trophozoite
B)   endospore
C)   cyst
D)   sporeE) None of the above
F) A) and D)

Question 4

Cell walls are not usually found in ________.

Accepted Answer

A)   protozoa
B)   algae
C)   fungi
D)   bacteria
E)   All of the choices are correct.F) A) and B)
G) A) and E)

Question 5

Protozoan cysts ________.

Accepted Answer

A)   are part of all protozoan life cycles
B)   are necessary for transmission to a new host
C)   are helpful in surviving unfavorable conditions
D)   are the primary form of replication
E)   All of the choices are correct.F) B) and D)
G) A) and D)

Question 6

The size of a eukaryotic cell ribosome is ________.

Accepted Answer

A)   30S
B)   40S
C)   50S
D)   70S
E)   80SF) A) and B)
G) A) and C)

Question 7

In humans, helminths generally infect the ________.

Accepted Answer

A)   digestive tract
B)   urinary tract
C)   nervous system
D)   muscular system
E)   skinF) C) and D)
G) A) and E)

Question 8

The eukaryotic cell membrane is a bilayer of sterols.

Accepted Answer

A) True 
 B)False

Question 9

During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage called a(n)  ________.

Accepted Answer

A)   endospore
B)   cyst
C)   seed
D)   trophozoite
E)   sporozoaF) D) and E)
G) A) and E)

Question 10

Protists with contractile vacuoles ________.

Accepted Answer

A)   are algae
B)   use them to expel excess water from the cell
C)   typically live in salty seawater
D)   use them for motility
E)   All of the choices are correct.F) C) and D)
G) B) and E)

Question 11

All algae have chloroplasts.

Accepted Answer

A) True 
 B)False

Question 12

In humans, fungi can only infect the skin.

Accepted Answer

A) True 
 B)False

Question 13

Fungi can reproduce both sexually and asexually.

Accepted Answer

A) True 
 B)False

Question 14

There are nine peripheral pairs and one central pair of ________ found inside eukaryotic flagella and cilia.

Accepted Answer

A)   filaments
B)   microtubules
C)   flagella
D)   cilia
E)   None of the choices are correct.F) B) and C)
G) A) and E)

Question 15

Parasitic worms have a highly developed ________ system.

Accepted Answer

A)   digestive
B)   nervous
C)   respiratory
D)   muscular
E)   reproductiveF) B) and C)
G) B) and D)

Question 16

The RN suspects the patient is suffering from oral candidiasis, caused by Candida albicans, and knows that treatment may require drugs that produce toxic side effects. Which of the following statements explains why drugs used to treat this type of infection can be toxic to humans?

Accepted Answer

A)   Antifungals target bacteria only seen in humans.
B)   Antifungals target eukaryotic structures seen in both Candida albicans and human cells.
C)   Antifungals target peptidoglycan which occurs in the cell wall of in both Candida albicans and human cells.
D)   Antifungals target the process of sporulation exhibited by both Candida albicans and human cells.E) A) and B)
F) A) and C)

Question 17

Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?

Accepted Answer

A)   Mitochondria
B)   Lysosomes
C)   Golgi apparatus
D)   Chloroplasts
E)   Endoplasmic reticulumF) A) and E)
G) C) and D)

Question 18

Which of the following are mismatched?

Accepted Answer

A)   Saprobe - obtain nutrients from the remains of dead plants and animals
B)   Heterotroph - synthesize organic nutrients using light energy and CO2
C)   Parasite - obtain nutrients from a living organism to the detriment of that organismD) B) and C)
E) None of the above

Question 19

Which of the following describes the relationship between the fungal hyphae and mycelia?

Accepted Answer

A)   Hyphae are filamentous cells that grow together in an intertwined mass called a mycelium.
B)   Mycelia are filamentous cells that grow together to form hyphae.
C)   Colonies of yeasts grow together to form hyphae, which then extend to form a mycelium.
D)   Septate hyphae aggregate to form mycelia and nonseptate hyphae form yeasts through budding.E) A) and B)
F) A) and C)

Question 20

Which of the following is not classified as a helminth?

Accepted Answer

A)   Tapeworm
B)   Fluke
C)   Flatworm
D)   Roundworm
E)   All of the choices are helminths.F) A) and D)
G) C) and D)

Exam 4: Eukaryotic Cells and Microorganisms

At the lakeside, public health officials post signs warning the public to avoid swimming in the lake. Acanthamoeba and other protozoa are able to enter a resting state when environmental conditions are unfavorable. This stage of the life cycle is called a(n) ________.

Correct AnswerverifiedShow Answer

The size of a eukaryotic cell ribosome is ________.

Correct AnswerverifiedShow Answer

Protozoan cysts ________.

Correct AnswerverifiedShow Answer

Cell walls are not usually found in ________.

Correct AnswerverifiedShow Answer

In humans, fungi can only infect the skin.

Correct AnswerverifiedShow Answer

Fungal spores differ from bacterial endospores in that ________.

Correct AnswerverifiedShow Answer

Protists with contractile vacuoles ________.

Correct AnswerverifiedShow Answer

Parasitic worms have a highly developed ________ system.

Correct AnswerverifiedShow Answer

There are nine peripheral pairs and one central pair of ________ found inside eukaryotic flagella and cilia.

Correct AnswerverifiedShow Answer

All algae have chloroplasts.

Correct AnswerverifiedShow Answer

The RN suspects the patient is suffering from oral candidiasis, caused by Candida albicans, and knows that treatment may require drugs that produce toxic side effects. Which of the following statements explains why drugs used to treat this type of infection can be toxic to humans?

Correct AnswerverifiedShow Answer

The eukaryotic cell membrane is a bilayer of sterols.

Correct AnswerverifiedShow Answer

During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage called a(n) ________.

Correct AnswerverifiedShow Answer

Which of the following are mismatched?

Correct AnswerverifiedShow Answer

Which of the following is not classified as a helminth?

Correct AnswerverifiedShow Answer

Fungi can reproduce both sexually and asexually.

Correct AnswerverifiedShow Answer

Cilia are structures for motility found primarily in ________.

Correct AnswerverifiedShow Answer

Which of the following describes the relationship between the fungal hyphae and mycelia?

Correct AnswerverifiedShow Answer

In humans, helminths generally infect the ________.

Correct AnswerverifiedShow Answer

Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?

Correct AnswerverifiedShow Answer

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