Complete Test Bank Ch.5 The Eukaryotes Of Microbiology

Chapter 5: The Eukaryotes of Microbiology

= Correct answer

Multiple Choice

1. Protozoa are best described as being:

A. nonphotosynthetic multicellular microorganisms

B. nonphotosynthetic unicellular microorganisms

C. photosynthetic multicellular microorganisms

D. photosynthetic unicellular microorganisms

Difficulty: Easy

ASM Standard: 9

1. Which of the following best describes zooplankton?
2. eukaryotes that are nonphotosynthetic and motile
3. eukaryotes that are photosynthetic and motile
4. prokaryotes that are nonphotosynthetic and nonmotile
5. prokaryotes that are photosynthetic and nonmotile

Difficulty: Easy

ASM Standard: 9

1. Where is the pellicle found within a protozoan?
2. as part of cilia
3. beneath the cell membrane
4. surrounding the nucleus
5. within chloroplasts

Difficulty: Easy

ASM Standard: 13

1. Which of the following is not a structure used for locomotion by protists?

A. cilia

B. contractile vacuoles

C. flagella

D. pseudopods

Difficulty: Moderate

ASM Standard: 9

1. Which structures associated with locomotion in protists can be described as short, hair-like structures that extend from the surface of the cell?

A. cilia

B. contractile vacuoles

C. flagella

D. pseudopods

Difficulty: Easy

ASM Standard: 9

1. Pseudopod formation requires which cytoskeletal component?

A. actin filaments

B. collagen fibers

C. intermediate filaments

D. microtubules

Difficulty: Moderate

ASM Standard: 9

1. The organelle in protists that regulates osmolarity is known as which of the following?

A. contractile vacuole

B. hydrogenosome

C. kinetoplasmid

D. plasmalemma

Difficulty: Easy

ASM Standard: 12

1. Cytoprocts are specialized structures that carry out which cellular process?

A. endocytosis

B. exocytosis

C. phagocytosis

D. syngamy

Difficulty: Moderate

ASM Standard: 12

1. Which organism is best known as the “brain-eating amoeba”?
2. Acanthamoeba keratitis
3. Entamoeba histolytica
4. Giardia lamblia
5. Naegleria fowleri

Difficulty: Moderate

ASM Standard: N/A

An important slime mold used in research is Dictyostelium discoideum. In this species, individual amoeboid cells that aggregate into multicellular mobile slugs, each forming a fruiting body that produces haploid spores, are known as which of the following?

A. cellular slime molds

B. plasmodium slime molds

C. pseudohyphae

D. sporangia

Difficulty: Moderate

ASM Standard: N/A

1. During the asexual life cycle described in the textbook, cellular slime molds produce which of the following?
2. gametes
3. spores
4. gametes and spores
5. neither gametes nor spores

Difficulty: Moderate

ASM Standard: N/A

1. Plasmodial slime molds produce which of the following:
2. gametes but no spores
3. gametes that divide into spores
4. spores but no gametes
5. spores that divide into gametes

Difficulty: Moderate

ASM Standard: 13

1. The apical complex of Apicomplexans such as Plasmodium is involved in which cellular process?
2. binary fission
3. entry into host cells
4. phagocytosis
5. photosynthesis

Difficulty: Moderate

ASM Standard: 23

1. Which of the following is a parasitic ciliate?
2. Balantidium coli
3. Escherichia coli
4. Paramecium caudatum
5. Stentor coeruleus

Difficulty: Moderate

ASM Standard: 23

1. The stigma (eyespot) in members of Euglenozoa functions in which of the following?
2. chemotaxis
3. conjugation
4. photosynthesis
5. phototaxis

Difficulty: Moderate

ASM Standard: N/A

1. African sleeping sickness is caused by which pathogen?
2. Giardia lamblia
3. Plasmodium falciparum
4. Toxoplasma gondii
5. Trypanosoma bruceii

Difficulty: Moderate

ASM Standard: 23

1. Cestodes are often transmitted via which of the following?
2. aerosols
3. open wounds in the skin
4. undercooked meats
5. water

Difficulty: Moderate

ASM Standard: 23

1. The cell walls of fungi are largely composed of which of the following?
2. cellulose
3. chitin
4. peptidoglycan
5. starch

Difficulty: Easy

ASM Standard: N/A

1. Which of the following includes fungi used as food (such as truffles), bread molds, and pathogenic fungi such as Trichophyton?
2. Ascomycota
3. Basidiomycota
4. Chytridiomycota
5. Zygomycota

Difficulty: Easy

ASM Standard: 5

1. Most mushrooms and puffballs are members of which fungal phylum?
2. Ascomycota
3. Basidiomycota
4. Chytridiomycota
5. Zygomycota

Difficulty: Easy

ASM Standard: 5

1. Which of the following include fungi that are obligate intracellular pathogens?
2. Ascomycota
3. Basidiomycota
4. Microsporidia
5. Zygomycota

Difficulty: Easy

ASM Standard: N/A

1. Which fungus is common in the microbiota of a healthy individual?
2. Aspergillus aculeatus
3. Candida albicans
4. Histoplasma capsulatum
5. Rhizopus stolonifera

Difficulty: Moderate

ASM Standard: 23, 24

1. The mode of reproduction for chytrids (Chytridiomycota) uses which of the following?
2. asci
3. basidia
4. motile gametes
5. zygospores

Difficulty: Easy

ASM Standard: N/A

1. To produce spores, some fungi use club-shaped structures called which of the following?
2. asci
3. basidia
4. plastids
5. zygospores

Difficulty: Easy

ASM Standard: N/A

1. Fungi have an important role in nutrient cycling as which of the following?
2. decomposers
3. primary consumers
4. producers
5. secondary consumer

Difficulty: Easy

ASM Standard: 24

1. Which of the following statements is incorrect?
2. Fungi can be autotrophic or heterotrophic.
3. Fungi can be pathogenic, mutualistic, or neither.
4. Fungi can be unicellular or multicellular.
5. Fungi have eukaryotic cells.

Difficulty: Medium

ASM Standard: 24

1. The types of algae are mainly grouped according to which of the following?
2. the size of their cells
3. their chloroplast types
4. their pigment types
5. where they are found

Difficulty: Easy

ASM Standard: 5

1. A lichen results from the mutualistic relationship between fungi and which of the following?
2. cyanobacteria or algae
3. green plants
4. heterotrophic bacteria
5. protozoans

Difficulty: Easy

ASM Standard: 23

1. The source of agar, which is typically used in the microbiology laboratory, is which of the following?
2. brown algae
3. green algae
4. red algae
5. lichen

Difficulty: Easy

ASM Standard: 26

1. Lichens attach to a surface using which structure?
2. capsules
3. cilia
4. flagella
5. rhizines

Difficulty: Moderate

ASM Standard: 9

True/False

1. The feeding and growth portion of a protozoan’s life cycle is known as the cyst stage.

Difficulty: Easy

ASM Standard: 13

1. Saprozoic fungi feed on dead organisms by ingesting small soluble food particles.

Difficulty: Easy

ASM Standard: 12, 24

1. Amoeba spp. use cilia as a means of locomotion.

Difficulty: Easy

ASM Standard: 9

1. All protozoans can reproduce sexually and asexually.

Difficulty: Easy

ASM Standard: 13

1. Plasmodial slime molds are individual amoeboids that aggregate into a mobile slug.

Difficulty: Easy

ASM Standard: N/A

1. Apicomplexans are parasitic protists.

Difficulty: Easy

ASM Standard: 23

1. The fusion of cytoplasmic contents from two separate cells during the fungal sexual life cycle is known as karogamy.

Difficulty: Easy

ASM Standard: N/A

1. Conidia are asexual fungal spores produced by members of the Ascomycota.

Difficulty: Moderate

ASM Standard: 9

1. The green algae that are most closely related to land plants are known as the Chlorophyta.

Difficulty: Moderate

ASM Standard: 5

1. One of the earliest truly multicellular green algae is Volvox.

Difficulty: Easy

ASM Standard: 5

Matching

1. Match the subgroup with its distinguishing feature.

Answers: A. iv., B. ii., C. iii., D. v., E. i.

Difficulty: Moderate

ASM Standard: 9

1. Match the pathogenic protist to the most relevant mechanism of transmission.

Answers: A. ii., B. i., C. iv., D. iii.

Difficulty: Moderate

ASM Standard: 23

1. Match the pathogenic nematode to the most relevant mechanism transmission.

Answers: A. iii., B. ii., C. iv., D. i.

Difficulty: Moderate

ASM Standard: 23

1. Put the generalized sexual life cycle of fungi in order, starting with two hyphae beginning to “mate.”

Answers: A. iv., B. i., C. ii., D. iii., E. v.

Difficulty: Moderate

ASM Standard: N/A

Fill in the Blank

1. Cytostomes are specialized protozoan structures for the process of ________.

Difficulty: Moderate

ASM Standard: N/A

1. ________ is a protozoal mechanism of asexual reproduction whereby the nucleus of a cell divides repeatedly before the cytoplasm of the cell divides.

Difficulty: Easy

ASM Standard: 9

1. The feeding and growth portion of the protozoan life cycle is known as the ________ stage.

Difficulty: Easy

ASM Standard: 9

1. The dormant stage of the protozoan life cycle is known as the ________ stage.

Difficulty: Moderate

ASM Standard: 9

1. Genetic diversity can be obtained in the ciliates through a process known as ________, in which micronuclei are exchanged.

Difficulty: Easy

ASM Standard: 15

1. Fungal fruiting bodies store and release ________.

Difficulty: Easy

ASM Standard: N/A

1. In the United States, the most common infection caused by nematodes is ________.

Difficulty: Moderate

ASM Standard: 23

1. Fungi consist of filaments known as ________.

Difficulty: Easy

ASM Standard: N/A

1. Chloroplasts can contain ________ that synthesize and store starch.

Difficulty: Moderate

ASM Standard: 9

1. According to the endosymbiotic theory, chloroplasts found in algae originally evolved from ________.

Difficulty: Easy

ASM Standard: 1

Short Answer

1. Name three methods of locomotion used by various groups of protozoans.

Sample

Difficulty: Easy

ASM Standard: 9

1. What are the two ways that heterotrophic protozoans bring in food particles?

Sample

Difficulty: Easy

ASM Standard: N/A

1. Briefly describe the differences between cellular and plasmodial slime molds, using examples from the specific cellular and plasmodial slime molds mentioned in the chapter.

Sample

Difficulty: Moderate

ASM Standard: N/A

1. Ciliates contain two types of nuclei. Briefly describe what they are and how many sets of chromosomes they contain.

Sample

Difficulty: Difficult

ASM Standard: 9

1. What are the four phyla of fungi that are important causes of human mycoses?

Sample

Difficulty: Moderate

ASM Standard: 23

1. What unique molecules are found in the cell wall and membrane of fungi, and serve as targets for antifungal agents?

Sample

Difficulty: Easy

ASM Standard: 7, 14

1. Dimorphic fungi can grow in different forms at different temperatures. How could this cause a change in a fungus that infected a human (i.e., would be at a higher temperature than in the surrounding environment)?

Sample

Difficulty: Moderate

ASM Standard: 14

1. What is the most potent natural carcinogen known and what organism produces it?

Sample

Difficulty: Easy

ASM Standard: 23

1. What is a zygospore?

Sample

Difficulty: Easy

ASM Standard: 9

1. What are plasmogamy and karogamy, and what does each event produce in the fungal life cycle?

Sample

Difficulty: Moderate

ASM Standard: N/A

1. What is the function of microsporidia’s polar tubule?

Sample

Difficulty: Moderate

ASM Standard: 9, 23

1. How did chloroplasts in eukaryotes arise?

Sample

Difficulty: Moderate

ASM Standard: 1

1. How do red tides harm marine life?

Sample

Difficulty: Moderate

ASM Standard: 23

1. What are the two types of green algae? Which is more closely related to today’s land plants? Be sure to explain your answer.

Sample

Difficulty: Moderate

ASM Standard: 5

1. How do the three types of lichens differ from each other?

Sample

Difficulty: Moderate

ASM Standard: N/A

Brief Essay

Essay Question Rubric

Assume rating/grading scale for the question ranges from 0 to 3 points.

1. Compare and contrast endospores and cysts. In what ways are they similar? In what ways are they different?

Sample

Difficulty: Difficult

ASM Standard: 9

1. Briefly describe how conjugation occurs in Paramecium.

Sample

Difficulty: Moderate

ASM Standard: 16

1. Describe how Trypanosoma brucei, which causes the disease known as African sleeping sickness, is transmitted to the host.

Sample

Difficulty: Moderate

ASM Standard: 23

1. There is a wide variety of eukaryotic algae, including seaweeds. Are these true plants? Why or why not?

Sample

Difficulty: Difficult

ASM Standard: N/A

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