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Microbiology (BIOL 286) > Unit 2 Quiz Questions > Flashcards

Unit 2 Quiz Questions Flashcards

1
Q

What are the end products of pyruvate dehydrogenase?

TPP, lipoamide, and FAD

Pyruvate and ATP

Acetyl-CoA, NADH, and carbon dioxide

Oxaloacetate and NADH

A

Acetyl-CoA, NADH, and carbon dioxide

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2
Q

Which of these compounds is able to be used for substrate level phosphorylation?

Fructose 1,6-diphosphate

Phosphoglyceraldehyde

Phosphoenolpyruvate

Glucose 6-phosphate

A

Phosphoenolpyruvate

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3
Q

An organism that uses carbon dioxide for its carbon source is called ____.

A phototroph

A lithotroph

A heterotroph

An autotroph

A

An autotroph

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4
Q

Which of the following does not require a protein carrier?

Group translocation

Symport

Facilitated diffusion

Passive diffusion

A

Passive diffusion

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5
Q

How many total ATP are produced during glycolysis?

1

2

3

4

A

4

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6
Q

What type of enzyme converts L-alanine into D-alanine?

Isomerase

Dehydrogenase

Lyase

Kinase

A

Isomerase

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7
Q

Which of the following would be considered a micronutrient?

Nickel

Nitrogen

Sulfur

Carbon

A

Nickel

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8
Q

Which pathway is used to produce 7-carbon key intermediates?

Pentose phosphate shunt

Entner Doudoroff

Glycolysis

TCA cycle

A

Pentose phosphate shunt

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9
Q

When ferrous iron Fe2+ is converted to ferric iron Fe3+, it is being ___.

Decomposed

Reduced

Oxidized

Hydrated

A

Oxidized

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10
Q

How many NADH are produced in each turn of the Krebs cycle?

3

2

1

4

A

3

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11
Q

Which of these can only carry electrons?

Cytochrome

Flavoprotein

NAD

Quinone

A

Cytochrome

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12
Q

Which of these is the most oxidized form of nitrogen?

Nitrite

Nitrate

Nitrous oxide

Ammonium ions

A

Nitrate

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13
Q

How many proton move through the ATPase to produce one ATP?

1

3

2

4

A

3

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14
Q

What group of microbes produce biological methane?

Cyanobacteria

Crenarachaeota

Euryarchaeota

Firmicutes

A

Euryarchaeota

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15
Q

Which complex is not needed to move electrons from NADH to oxygen in the mitochondria?

Complex II

Complex III

Complex I

Complex IV

A

Complex II

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16
Q

Which of these is the best electron donor?

Oxygen

Nitrite

Glucose

NADH

A

Glucose

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17
Q

Which group of microbes do anoxygenic photosynthesis like PS I in plants?

Euryarchaeota

Green sulfur bacteria

Cyanobacteria

Purple sulfur bacteria

A

Green sulfur bacteria

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18
Q

Which of these would be an electron acceptor for a fermentation reaction?

Oxygen

Pyruvate

Nitrate

Sulfate

A

Pyruvate

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19
Q

Which of these pairs would pump out the most protons from E. coli?

NDH II and cytochrome bd

NDH I and cytochrome bd

NDH II and cytochrome bo

NDH I and cytochrome bo

A

NDH I and cytochrome bo

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20
Q

Which microbes form chlorosomes to perform photosynthesis?

Green sulfur bacteria

Purple sulfur bacteria

Cyanobacteria

Euryarchaeota

A

Green sulfur bacteria

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21
Q

When you put isopropanol on your arm, you are performing ______.

Disinfection

Inoculation

Antisepsis

Sterilization

A

Antisepsis

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22
Q

What phase of bacterial growth has the highest growth rate?

Stationary phase

Log phase

Lag phase

Death phase

A

Log phase

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23
Q

What type of microbe grows best at 0°C?

Xerophile

Mesophile

Acidophile

Psychrophile

A

Psychrophile

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24
Q

What is the first committed stage of endospore formation?

Stage II

Stage III

Stage 0

Stage I

A

Stage II

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25
Which of the following would most likely produce an endospore? Escherichia Crenarchaeota Staphylococcus Clostridium
Clostridium
26
What process do bacteria use to grow and divide? Meiosis Binary fission Mitosis Budding
Binary fission
27
How do we sterile most things in a microbiology laboratory? Pasteurization Ethylene oxide Irradition Autoclave
Autoclave
28
What type of microbe only grows at the top of a thioglycollate tube? Aerobe Aerotolerant Facultative anaerobe Anaerobe
Aerobe
29
If you have 100 cells with a doubling time of 20 minutes, how many will be there in one hour? 200 800 400 1600
800
30
Which part of an endospore contains peptidoglycan? Exosporium Cortex Core Coat
Cortex
31
A mixed community of microbes living on a surface is called what? Thallus Vegetation Colony Biofilm
Biofilm
32
Which soil zone is most at the surface? O zone A zone B zone C zone
O zone
33
What separates the epilimnion from the hypolimnion? Sediments Thermocline Surface Atmosphere
Thermocline
34
Which marine microbe is most important for photosynthesis? Proteobacteria Cyanobacterium Prochlorococcus Euryarchaeota
Prochlorococcus
35
What term refers to microbes that only grow at extremely high pressures? Piezophiles Thermophiles Xerophiles Halophiles
Piezophiles
36
Metabolically related groups of microorganisms are called what? Niches Communities Populations Guilds
Guilds
37
What type of microbes predominate at deep ocean thermal vents? Photoautotrophs Photoheterotrophs Chemoheterotrophs Chemolithotrophs
Chemolithotrophs
38
Which microbes are most abundant in soil and water? Firmicutes Proteobacteria Cyanobacteria Actinobacteria
Proteobacteria
39
What term refers to pollution of water by excess nutrients? Xenobiosis Nitrification Eutrophication Oligodynamic effect
Eutrophication
40
Which soil zone has the most microbial growth? O zone B zone C zone A zone
A zone
41
Which of these elemental cycles does not have a gas phase? Nitrogen Sulfur Carbon Phosphate
Phosphate
41
What does this reaction represent? NO3 >> NH3 Nitrogen fixation Denitrification Nitrification Ammonification
Denitrification
42
What does this reaction represent? NH3 >> NO3 Ammonification Nitrogen fixation Nitrification Denitrification
Nitrification
43
What does this reaction represent? N2 >> NH3 Ammonification Nitrification Nitrogen fixation Denitrification
Nitrogen fixation
44
Where is most of the carbon on Earth located? Atmosphere Rocks and minerals Ocean Living organisms
Rocks and minerals
45
What is completely reduce carbon called? Carbon dioxide Carbon monoxide Methane Carbohydrate
Methane
46
What is the most abundant organic sulfur compound in nature? Dimethyl sulfide Hydrogen sulfide Cysteine Sodium sulfate
Dimethyl sulfide
47
What enzyme is used to make atomospheric nitrogen bio-available? Nitrate reductase Nitrite reductase Nitrogenase Methylase
Nitrogenase
48
What element do diatoms build their frustules with? Calcium Carbon Iron Silica
Silica
49
Which of these pairs of ions are most insoluble? Mn4+ and Fe3+ Mn2+ and Fe2+ Mn4+ and Fe2+ Mn2+ and Fe3+
Mn4+ and Fe3+
50
What microbe is used in oxidation ponds for leaching copper in mines? Thermus aquaticus Bacillus stearothermophilis Escherichia coli Leptospirillum ferrooxidans
Leptospirillum ferrooxidans
51
What is the main goal of secondary wastewater treatment? Reducing biological oxygen demand Reducing the number of pathogens Removal of excess iron Removal of solid
Reducing biological oxygen demand
52
Why do wastewater plants add FeCl3 to their wastewater streams? Kill excess pathogens Stimulate microbial growth Precipitate excess phosphate Adjust the pH of the water
Precipitate excess phosphate
53
What process breaks down manmade chemicals in the absence of oxygen? Ammonification Reductive dechlorination Nitrogen fixation Oxidative dechlorination
Reductive dechlorination
54
What term refers to manmade compounds that are not found in nature? Halides Heterotrophs Xenobiotics Chemokines
Xenobiotics
55
What is the main goal of primary wastewater treatment? Reducing biological oxygen demand Removal of solids Reducing the number of pathogens Removal of excess iron
Removal of solids
56
What elements make up pyrites? Iron and sulfur Iron and copper Copper and gold Gold and sulfur
Iron and sulfur
57
What is the main goal of tertiary wastewater treatment? Reducing the number of pathogens Removal of solids Removal of excess iron Reducing biological oxygen demand
Reducing the number of pathogens
58
What microbial process causes sewer mains to fail? Biodeterioration Eutrophication Annomox reactions Bioremediation
Biodeterioration
59
Which of these is most likely to be a biodegradable polymer? Polystyrene Polypropylene Teflon Polyhydroxybuterate
Polyhydroxybuterate

Microbiology (BIOL 286) (36 decks)

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