Fall 01: Bios 205 – Exam 3 Name: ______________________

Organismal Diversity

01) Which of the following are methods used in bacterial taxonomy:

a) Checkerboards

b) flowcharts

c) multitest systems

d) A & B

e) all of the above

02) With respect to cell structure, what two ultrastructural cell types are currently recognized in biology?

a) eubacteria and archaebacteria

b) bacteria and archaea

c) eukarya and bacteria

d) prokaryotes and eukaryotes

e) frick and frak

03) An organism which obtains it’s carbon from preexisting organic compounds and it’s energy from light would be termed a:

a) photoheterotroph

b) chemoheterotroph

c) photoautotroph

d) chemoorganotroph

e) none of the above

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04-07) Match bacterial “groups” 9-12 with their key phenotypic characteristic(s):

a) flexible walls b) photosynthetic c) actinopoda d) lack peptidoglycan e) Biogeochemical Cycling

04) Mycoplasma

05) Spirochetes

06) Cyanobacteria

07) Chemoautotrophs

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08-12) Match the following:

a) Nucleoid b) Peptidoglycan c) Pili d) flagella e) mesosomes

08) Principle component of bacterial cell wall

09) Functions in bacterial adhesion

10) Functions in bacterial motility

11) Region containing the bacterial genome

12) Infolding of the bacterial cytoplasmic membrane

13) Bacteria which thrive at “hot” temperatures would be classified as:

a) thermophiles

b) chillophiles

c) mesophiles

d) iceophiles

e) psycrophiles

14) The Archaea:

a) are prokaryotes and thus just another type of bacteria

b) are prokaryotes but differ significantly from the bacteria

c) lack a peptideglycan cell wall

d) B & C

e) A & C

15-20) Match the following:

a) The Budding and/or appendaged bacteria

b) The Spirochetes

c) The Endospore Forming Rods and Cocci

d) The Actinomycetes and related Organisms

e) The Gliding Bacteria

15) Presence of axial filament

16) Includes the genera Bacillus and Clostridium

17) Gram positive organisms which tend to form filaments

18) Include what are known as the "Prosthecate" bacteria

19) Motility via a means other than flagellar mediated

20) May replicate by a process other than binary fission

21) Phenotypic and genetic characteristics which may be used to classify bacteria are termed:

a) phenologic attributes b) diversification elements c) taxonomic traits d) genomes

e) a & d

22) In which of the following environments would bacterial cfu / volume most likely be greatest:

a) air b) lake water c) river water d) agricultural soil e) b & c

23) Procaryotes are unique in the ability to inhabit various extreme environments with respect to:

a) heat b) cold c) acidity d) pressure e) all of the above

24) Bacteria which thrive in environments where oxygen is present, but do not utilize oxygen metabolically, would be classified as:

a) obligate aerobes b) strict anaerobes c) aerotolerant anaerobes d) facultative anaerobes

e) none of the above

25) The relationship between an endosymbiotic nitrogen fixing bacterium and its plant host would best be described as:

a) pathogenic b) parasitic c) commensual d) mutualistic e) infestation

26) Bioremediation refers to:

a) Bacterial processes which are involved in the elemental turnover of C, S, P etc.

b) Application of bacterial agents in the breakdown of various human-generated wastes

c) Application of bacterial agents in control of various adverse organisms, such as insects

d) Genetic engineering of bacteria to produce metabolic by-products useful to humans

e) None of the above

27) In bacteriology a species is defined by:

a) the ability to intermate, with the production of viable offspring

b) a high degree of morphologic similarity

c) a high degree of phenotypic and genetic similarity

d) a & c

e) all of the above

28) Which of the following correctly contrasts eucaryotic and procaryotic ribosomes:

a) procaryotes: 30s, 50s = 70s / eucaryotes: 40s, 60s = 80s

b) procaryotes: 30s, 50s = 80s / eucaryotes: 40s, 60s = 100s

c) procaryotes: 40s, 60s = 80s / eucaryotes: 30s, 50s = 70s

d) all of the above

e) none of the above

29) Which of the following microscopies could provide a 50,000X, 3 dimensional view of an organism?

a) Ultraviolet b) TEM c) phase d) SEM e) fluorescent

30) Mechanisms of cell motility in bacteria include:

a) peritrichous flagella b) gliding c) cillia d) a & b e) all of the above

31) Which of the following is not a term utilized to describe typical bacterial morphology?

a) rods b) cocci c) spirilla d) prosthecate e) none of the above

32) Which of the following is the predominate mechanism of bacterial reproduction?

a) conjugation b) budding c) multiple fission d) binary fission e) fragmentation

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33-36 MATCHING:

a) fermentation b) respiration c) chemoheterotroph d) chemoautotroph e) none of these

33) An organism derives its energy from various inorganic sources and fixes atmospheric CO2

34) A metabolic process in which an organic compound serves as both the electron donor and the terminal electron acceptor.

35) A metabolic process in which an organic compound serves as the electron donor and an inorganic compound, oxygen, serves as the terminal electron acceptor.

36) An organism which derives its energy and carbon from pre-synthesized organic compounds

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39-40 MATCHING: Responses may be used more than once:

a) granules b) extracellular polymeric substances c) cell wall d) cell membrane e) periplasmic space

37) Peptidoglycan is the principle component of what bacterial structure:

38) Confers morphology and osmotic stability

39) key function is selective permeability

40) capsules

41) All members of the kingdom Protista possess a eukaryotic cellular organization. a) true b) false

42) The agent Entamoeba hystolytica, causing amebic dysentery, belongs to the phylum: a) Ciliophora b) Rhizopoda c) Foraminifera d) Actinopoda e) Zoomastigophora

43) Members of the genus Saprolegnia most often inhabit: a) aquatic environments b) terrestrial environments

44) A plasmodial slime mold "feeds" on: a) dead skin cells b) rotten logs of trees c) living trees d) zooplanktons

45) The Irish potato famine was caused by what kind of organism? a) bacterium b) sporozoan c) oomycete d) cellular slime mold

46) The African sleeping sickness is caused by an organism which is commonly referred to as a "zooflagellate." a) true b) false

47) Athlete's foot is caused by a: a) bacterium b) protozoan c) virus d) fungus

48) In terms of nutrition, the fungus-like protists are classified as: a) ingestive b) absorptive c) photosynthetic d) none of the previous choices

49) Members of the phylum Myxomycota are commonly referred to as the: a) plasmodial slime molds b) cellular slime molds c) egg fungi d) none of the previous choices

50) All of the fungus-like protists are heterotrophic. a) true b) false