Microbiology A Systems Approach 3rd Edition by Marjorie Kelly Cowan - Test Bank

Microbiology A Systems Approach 3rd Edition by Marjorie Kelly Cowan – Test Bank

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Sample Questions Are Posted Below

ch05
Student: ___________________________________________________________________________
1. Protists include
A. Yeasts and molds
B. Algae and protozoa
C. Helminths
D. All of the choices are correct
E. None of the choices are correct
2. The eukaryotic cell organelle that most resembles a bacterial cell is the
A. Nucleus
B. Golgi apparatus
C. Mitochondria
D. Lysosome
E. Ribosome
3. The endosymbiotic theory says that precursor eukaryotic cells acquired flagella by endosymbiosis with a
_____ ancestor and others gained photosynthetic ability from endosymbiosis with a _____ ancestor.
A. Protozoan, algae
B. Archaea, cyanobacteria
C. Spirochete, cyanobacteria
D. Helminth, algae
E. None of the choices are correct
4. The endosymbiotic theory has been developed to explain the emergence of
A. Archea
B. Bacteria
C. Prokaryotes
D. Eukaryotes
E. None of the choices are correct
5. Biologists have found evidence that eukaryotic cells evolved from prokaryotic organisms by a process of
intracellular
A. Symbiosis
B. Parasitisim
C. Communalism
D. None of the choices are correct
6. Which of the following is found in eukaryotic cells but not in prokaryotic cells?
A. Nucleus
B. Mitochondria
C. Endoplasmic reticulum
D. Lysosomes
E. All of the choices are correct
7. Eukaryotic flagella differ from prokaryotic flagella because only eukaryotic flagella
A. Are used for cell motility
B. Facilitate chemo taxis
C. Facilitate photo taxis
D. Are long whip-like structures
E. Contain microtubules
8. Cilia are found in certain
A. Protozoa
B. Algae
C. Fungi
D. Bacteria
E. All of the choices are correct
9. There are nine peripheral pairs and one central pair of _____ found inside eukaryotic flagella and
cilia.
A. Filaments
B. Microtubules
C. Flagella
D. Cilia
E. None of the choices are correct
10. Cell walls are not found on typical cells of
A. Protozoa
B. Algae
C. Fungi
D. Bacteria
E. All of the choices are correct
11. The eukaryotic cell’s glycocalyx is
A. Mostly polysaccharide
B. The site where many metabolic reactions occur
C. Also called the cell wall
D. Composed of many diverse proteins
E. Protection against osmotic lysis
12. Which of the following is not a function of the eukaryote glycocalyx?
A. Protection
B. Adherence
C. Movement
D. Reception of chemical signals
E. All of the choices are functions
13. Chitin is a chemical component of the cell walls of
A. Protozoa
B. Algae
C. Fungi
D. Bacteria
E. All of the choices are correct
14. The eukaryote cell membrane is composed of
A. Sterols
B. Proteins
C. Phospholipids
D. All of these
E. Only sterols and phospholipids
15. The site for ribosomal RNA synthesis is the
A. Ribosome
B. Nucleolus
C. Nucleus
D. Golgi apparatus
E. Lysosome
16. When a eukaryotic cell is not undergoing mitosis, the DNA and its associated proteins appear as a visible
thread-like mass called the
A. Nuclear envelope
B. Nucleosome
C. Nucleolus
D. Nucleoplasm
E. Chromatin
17. Histones are
A. Found in polyribosomes
B. Enzymes found in lysosomes
C. Proteins of the cytoskeleton
D. Proteins associated with DNA in the nucleus
E. On the surface of rough endoplasmic reticulum
18. The passageways in the nuclear envelope for movement of substances to and from the nucleus and
cytoplasm are called nuclear
A. His tones
B. Chromatin
C. Pores
D. Endoplasmic reticulum
E. Inclusions
19. The cell’s series of tunnel-like membranes functioning in transport and storage are the
A. Mitochondria
B. Iysosomes
C. Golgi apparatus
D. Chloroplasts
E. Endoplasmic reticulum
20. An organelle that is a stack of flattened, membranous sacs and functions to receive, modify and package
proteins for cell secretion is the
A. Mitochondria
B. Lysosomes
C. Golgi apparatus
D. Chloroplasts
E. Endoplasmic reticulum
21. Protists with contractile vacuoles
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
22. A _____ originates from the golgi apparatus as one type of vesicle that contains a variety of enzymes for
intracellular digestion.
A. Perixosome
B. Lysosome
C. Magneto some
D. Inclusion
E. Ribosome
23. Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?
A. Mitochondria
B. Lysosomes
C. Golgi apparatus
D. Chloroplasts
E. Endoplasmic reticulum
24. Mitochondria possess all of the following except
A. Enzymes for metabolism
B. Cristae
C. Electron transport chain proteins
D. Enzymes for photosynthesis
E. 70S ribosomes (prokaryote)
25. Which organelle is found in algae but not found in protozoa or fungi?
A. Mitochondria
B. Lysosomes
C. Golgi apparatus
D. Chloroplasts
E. Endoplasmic reticulum
26. In eukaryotic cells, which of the following contains DNA?
A. Nucleus, mitochondria, Golgi apparatus
B. Nucleus, endoplasmic reticulum, Golgi apparatus
C. Nucleus, nucleolus, Golgi apparatus
D. Nucleus, chloroplast, mitochondria
E. Nucleus, chloroplast, peroxisome
27. Chloroplasts are composed of membranous sacs called _____ that carry chlorophyll. Surrounding these
sacs is a ground substance called _____.
A. Thylakoids, stroma
B. Granna, stroma
C. Cristae, stroma
D. Cristae, matrix
E. Thylakoid, matrix
28. The size of a eukaryotic cell ribosome is
A. 30S
B. 40S
C. 50S
D. 70S
E. 80S
29. Which of the following is not true of the cytoskeleton?
A. Structural framework for the cell
B. Anchor points for organelles
C. Made up of microfilaments
D. Made up of microtubules
E. Made up of cilia
30. In eukaryotic cells, ribosomes have two locations: scattered in the _____ and on the surface of _____.
A. Cytoplasm, golgi apparatus
B. Nucleus, golgi apparatus
C. Cytoplasm, endoplasmic reticulum
D. Cytoplasm, golgi apparatus
E. Nucleus, endoplasmic reticulum
31. The cytoskeleton
A. Anchors organelles
B. Provides support
C. Functions in movements of the cytoplasm
D. Helps maintain cell shape
E. All of the choices are correct
32. Filamentous fungi are called
A. Pseudohyphae
B. Septa
C. Molds
D. Dimorphic
E. Mycelium
33. When buds remain attached, they form a chain of yeast cells called
A. Pseudohyphae
B. Septa
C. Molds
D. Dimorphic
E. Mycelium
34. Fungi that grow as yeast at one temperature but will grow as mold at another temperature are called
A. Dimorphic
B. Saprobes
C. Pseudohyphae
D. Spores
E. Parasites
35. Which is not a characteristic of fungi?
A. Cells have cell walls
B. Photosynthetic
C. Include single-celled and filamentous forms
D. Heterotrophic nutrition
E. Can use a wide variety of nutrients
36. The long, thread-like branching cells of molds are called
A. Conidiophores
B. Pseudohyphae
C. Hyphae
D. Septate
E. Ascus
37. Most fungi obtain nutrients from dead plants and animals. These fungi are called
A. Saprobes
B. Parasites
C. Substrates
D. Nonseptate
E. Dimorphic
38. The woven, intertwining mass of hyphae that makes up the body of a mold is a/an
A. Septum
B. Rhizoid
C. Spore
D. Bud
E. Mycelium
39. Fungal asexual spores
A. Are only produced under harmful environmental conditions
B. Are only asexually produced
C. Cannot be seen in a light microscope
D. Are produced by molds but not by yeasts
E. Are used to identify fungi
40. What two categories of fungi cause human diseases?
A. Primary and secondary
B. Primary and vegetative
C. Opportunistic and primary
D. Secondary and opportunistic
E. Vegetative and reproductive
41. Blooms of certain alga are associated with all of the following except
A. Paralytic shellfish poisoning
B. Red tides
C. Ciguatera
D. Pfiesteria piscicida
E. Amoebic dysentery
42. Pfiesteria is a/an
A. Toxic fungus
B. Toxic algae
C. Toxic heminth
D. Toxic protozoan
E. Bacterial endospore
43. During unfavorable growth conditions, many protozoa can convert to a resistant, dormant stage called a/
an
A. Endospore
B. Cyst
C. Seed
D. Trophozoite
E. Sporozoa
44. All of the following are found in some or all protozoa except
A. Motility
B. Ectoplasm and endoplasm
C. Heterotrophic nutrition
D. Formation of a cyst stage
E. Cell wall
45. The motile, feeding stage of protozoa is called the
A. Trophozoite
B. Cyst
C. Sporozoite
D. Oocyst
E. Food vacuole
46. The group of protozoa that have flagella are the
A. Sarcodina
B. Ciliophora
C. Mastigophora
D. Apicomplexa
E. None of the choices are correct
47. The group of protozoa that are not mobile are the
A. Sarcodina
B. Ciliophora
C. Mastigophora
D. Apicomplexa
E. None of the choices are correct
48. The group of protozoa that use pseudopodia to move are the
A. Sarcodina
B. Ciliophora
C. Mastigophora
D. Apicomplexa
E. None of the choices are correct
49. Which is mismatched?
A. Giardia-transmitted by feces in drinking water
B. Histoplasma-causes Ohio Valley fever
C. Trichomonas-sexually transmitted
D. Plasmodium-causes Chagas disease
E. Trypanosomes –causes African sleeping sickness
50. Protozoan endoplasm contains
A. Ectoplasm
B. Mitochondria
C. Flagella
D. Oral groves
E. None of the choices are correct
51. Protozoan cysts
A. Are part of all protozoan life cycles
B. Are necessary for transmission to a new host
C. Are analogous to bacterial endospores
D. Are the primary form of replication
E. All of the choices are correct
52. Amoebic dysentery is most commonly contracted through the
A. Fecal oral route from contaminated food or water
B. Direct transmission from one host to another
C. Puncture wounds
D. Insect bites
E. None of the choices are correct
53. The vector for the trypanosome of Chagas disease is the
A. Mosquito
B. Deer tick
C. Tse-tse fly
D. Reduviid bug
E. Nematode
54. All of the following are helminths except
A. Pinworms
B. Flukes
C. Trypanosomes
D. Roundworms
E. Tapeworms
55. Which of the following does not pertain to helminths?
A. In kingdom Protista
B. Parasitic worms
C. Eggs and sperm used for reproduction
D. Often alternate hosts in complex life cycles
E. Have various organ systems
56. Larvae and eggs are developmental forms of
A. Protozoa
B. Algae
C. Helminthes
D. Fungi
E. None of the choices are correct
57. All of the following are helminths except
A. Tapeworms
B. Flukes
C. Flatworms
D. Round worms
E. All of the choices are helminthes
58. Adulthood and mating of helminths occur in which host?
A. Primary host
B. Secondary host
C. Definitive host
D. Transport host
E. Mating takes place in all hosts
59. Larval development of helminths occurs in which host?
A. Primary host
B. Secondary host
C. Definitive host
D. Transport host
E. Mating takes place in all hosts
60. Parasitic worms have a highly developed ______ system.
A. Digestive
B. Nervous
C. Respiratory
D. Muscular
E. Reproductive
61. In humans, helminthes generally infect the
A. Digestive tract
B. Urinary tract
C. Nervous system
D. Muscular system
E. Skin
62. After returning from a trip to Africa, Tom begins to feel very tired and weak. He has severe anemia.
A blood smear reveals a protozoan is present in his blood. The health care provider tells Tom he has
malaria. Which of the following could be the causative agent of his disease?
A. HIV
B. T. solium
C. Plasmodium malariae
D. Trichophyton
63. Eating undercooked meat can lead to food poisoning and helminthic infection. What is the common host
for Taenia solium?
A. Geese
B. Ducks
C. Pigs
D. Cows
64. Under extreme conditions some bacilli go into a dormant, non-vegetative state called__ formation.
A. ciliated
B. cytoplasmic streaming
C. ameobiod
D. endospore
65. The eukaryotic cell membrane is a bilayer of sterols.
True False
66. The cell wall of fungi and algae are chemically identical to the prokaryotic cell wall.
True False
67. Chromosomes are generally not visible in the nucleus unless the cell is undergoing nuclear division.
True False
68. The nuclear envelope is a single layer.
True False
69. Rough endoplasmic reticulum is studded with ribosomes.
True False
70. Eukaryotic mitochondria have their own 70S ribosomes and circular DNA.
True False
71. Algae are classified into Divisions based principally on their type of motility.
True False
72. Infections caused by fungi are called mycoses.
True False
73. All fungi have hyphae.
True False
74. In humans, fungi can only infect the skin.
True False
75. All fungi cause some kind of disease in plants and animals.
True False
76. Fungi can reproduce both sexually and asexually.
True False
77. All algae have chloroplasts.
True False
78. Plankton are floating communities of helminths.
True False
79. There are no algae that can cause human disease.
True False
ch05 Key
1. B
2. C
3. C
4. D
5. A
6. E
7. E
8. A
9. B
10. A
11. A
12. C
13. C
14. D
15. B
16. E
17. D
18. C
19. E
20. C
21. B
22. B
23. A
24. D
25. D
26. D
27. A
28. E
29. E
30. C
31. E
32. C
33. A
34. A
35. B
36. C
37. A
38. E
39. E
40. C
41. E
42. B
43. B
44. E
45. A
46. C
47. D
48. A
49. D
50. B
51. C
52. A
53. D
54. C
55. A
56. C
57. E
58. C
59. B
60. E
61. A
62. C
63. C
64. D
65. FALSE
66. FALSE
67. TRUE
68. FALSE
69. TRUE
70. TRUE
71. FALSE
72. TRUE
73. FALSE
74. FALSE
75. FALSE
76. TRUE
77. TRUE
78. FALSE
79. FALSE
ch05 Summary
Category # of Questions
Cowan – Chapter 05 79
Learning Objective: 5.01 Relate both prokaryotic and eukaryotic cells to the Last Common Ancestor. 1
Learning Objective: 5.02 List the types of eukaryotic microorganisms and denote which are unicellular and which are multicellular
.
2
Learning Objective: 5.03 Differentiate between cilia and flagella in eukaryotes 5
Learning Objective: 5.04 Describe the important characteristics of a glycocalyx in eukaryotes 1
Learning Objective: 5.04 Describe the important characteristics of a glycocalyx in eukaryotes. 1
Learning Objective: 5.05 List which eukaryotic microorganisms have a cell wall 1
Learning Objective: 5.05 List which eukaryotic microorganisms have a cell wall. 1
Learning Objective: 5.06 List similarities and differences between eukaryotic and prokaryotic cytoplasmic membranes. 3
Learning Objective: 5.07 Describe the important component parts of a nucleus. 3
Learning Objective: 5.07 Describe the important component parts of the nucleus. 2
Learning Objective: 5.07 Describe the important components of a nucleus. 1
Learning Objective: 5.08 Diagram how the nucleus 4
Learning Objective: 5.09 Explain the function of the mitochondria 1
Learning Objective: 5.09 Explain the function of the mitochondria. 2
Learning Objective: 5.10 Discuss the function of chloroplasts and explain which cells contain them and why. 3
Learning Objective: 5.11 Explain the importance of ribosomes and differentiate between eukaryotic and prokaryotic types. 2
Learning Objective: 5.12 List and describe the three main fibers of the cytoskeleton 1
Learning Objective: 5.12 List and describe the three main fibers of the cytoskeleton. 1
Learning Objective: 5.13 List some general features of fungal anatomy. 3
Learning Objective: 5.14 Differentiate among the terms heterotrophic 1
Learning Objective: 5.15 Connect the concepts of fungal hyphae and a mycelium 2
Learning Objective: 5.15 Connect the concepts of fungal hyphae and a mycelium. 3
Learning Objective: 5.16 Describe two ways in which fungal spores arise. 2
Learning Objective: 5.17 List 2 detrimental and 2 beneficial activities of fungi (from the viewpoint of humans). 6
Learning Objective: 5.17: List 2 detrimental and 2 beneficial activities of fungi (from the viewpoint of humans). 1
Learning Objective: 5.18 Use protozoan characteristics to explain why they are informally placed into a single group. 3
Learning Objective: 5.19 List three means of locomotion by protozoa 3
Learning Objective: 5.19 List three means of locomotion by protozoa. 1
Learning Objective: 5.20 Explain why a cyst stage might be useful. 1
Learning Objective: 5.21 Give an example of a disease caused by each of the four types of protozoa. 2
Learning Objective: 5.22 List the two major groups of helminths and then the two subgroups of one of these groups. 2
Learning Objective: 5.23 Describe a typical helminth lifestyle 1
Learning Objective: 5.23 Describe a typical helminth lifestyle. 5
Learning Objective: act. 4
Learning Objective: and between flagella in prokaryotes and eukaryotes. 5
Learning Objective: and parasite. 1
Learning Objective: endoplasmic reticulum and Golgi apparatus 3
Learning Objective: ER and Golgi 1
Learning Objective: saprobe 1
Learning Objective: together with vesicles 4