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

Unit 2 Quiz Questions Flashcards

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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
Q

Which of the following would most likely produce an endospore?

Escherichia

Crenarchaeota

Staphylococcus

Clostridium

A

Clostridium

26
Q

What process do bacteria use to grow and divide?

Meiosis

Binary fission

Mitosis

Budding

A

Binary fission

27
Q

How do we sterile most things in a microbiology laboratory?

Pasteurization

Ethylene oxide

Irradition

Autoclave

A

Autoclave

28
Q

What type of microbe only grows at the top of a thioglycollate tube?

Aerobe

Aerotolerant

Facultative anaerobe

Anaerobe

A

Aerobe

29
Q

If you have 100 cells with a doubling time of 20 minutes, how many will be there in one hour?

200

800

400

1600

A

800

30
Q

Which part of an endospore contains peptidoglycan?

Exosporium

Cortex

Core

Coat

A

Cortex

31
Q

A mixed community of microbes living on a surface is called what?

Thallus

Vegetation

Colony

Biofilm

A

Biofilm

32
Q

Which soil zone is most at the surface?

O zone

A zone

B zone

C zone

A

O zone

33
Q

What separates the epilimnion from the hypolimnion?

Sediments

Thermocline

Surface

Atmosphere

A

Thermocline

34
Q

Which marine microbe is most important for photosynthesis?

Proteobacteria

Cyanobacterium

Prochlorococcus

Euryarchaeota

A

Prochlorococcus

35
Q

What term refers to microbes that only grow at extremely high pressures?

Piezophiles

Thermophiles

Xerophiles

Halophiles

A

Piezophiles

36
Q

Metabolically related groups of microorganisms are called what?

Niches

Communities

Populations

Guilds

A

Guilds

37
Q

What type of microbes predominate at deep ocean thermal vents?

Photoautotrophs

Photoheterotrophs

Chemoheterotrophs

Chemolithotrophs

A

Chemolithotrophs

38
Q

Which microbes are most abundant in soil and water?

Firmicutes

Proteobacteria

Cyanobacteria

Actinobacteria

A

Proteobacteria

39
Q

What term refers to pollution of water by excess nutrients?

Xenobiosis

Nitrification

Eutrophication

Oligodynamic effect

A

Eutrophication

40
Q

Which soil zone has the most microbial growth?

O zone

B zone

C zone

A zone

A

A zone

41
Q

Which of these elemental cycles does not have a gas phase?

Nitrogen

Sulfur

Carbon

Phosphate

A

Phosphate

41
Q

What does this reaction represent? NO3&raquo_space; NH3

Nitrogen fixation

Denitrification

Nitrification

Ammonification

A

Denitrification

42
Q

What does this reaction represent? NH3&raquo_space; NO3

Ammonification

Nitrogen fixation

Nitrification

Denitrification

A

Nitrification

43
Q

What does this reaction represent? N2&raquo_space; NH3

Ammonification

Nitrification

Nitrogen fixation

Denitrification

A

Nitrogen fixation

44
Q

Where is most of the carbon on Earth located?

Atmosphere

Rocks and minerals

Ocean

Living organisms

A

Rocks and minerals

45
Q

What is completely reduce carbon called?

Carbon dioxide

Carbon monoxide

Methane

Carbohydrate

A

Methane

46
Q

What is the most abundant organic sulfur compound in nature?

Dimethyl sulfide

Hydrogen sulfide

Cysteine

Sodium sulfate

A

Dimethyl sulfide

47
Q

What enzyme is used to make atomospheric nitrogen bio-available?

Nitrate reductase

Nitrite reductase

Nitrogenase

Methylase

A

Nitrogenase

48
Q

What element do diatoms build their frustules with?

Calcium

Carbon

Iron

Silica

A

Silica

49
Q

Which of these pairs of ions are most insoluble?

Mn4+ and Fe3+

Mn2+ and Fe2+

Mn4+ and Fe2+

Mn2+ and Fe3+

A

Mn4+ and Fe3+

50
Q

What microbe is used in oxidation ponds for leaching copper in mines?

Thermus aquaticus

Bacillus stearothermophilis

Escherichia coli

Leptospirillum ferrooxidans

A

Leptospirillum ferrooxidans

51
Q

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

A

Reducing biological oxygen demand

52
Q

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

A

Precipitate excess phosphate

53
Q

What process breaks down manmade chemicals in the absence of oxygen?

Ammonification

Reductive dechlorination

Nitrogen fixation

Oxidative dechlorination

A

Reductive dechlorination

54
Q

What term refers to manmade compounds that are not found in nature?

Halides

Heterotrophs

Xenobiotics

Chemokines

A

Xenobiotics

55
Q

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

A

Removal of solids

56
Q

What elements make up pyrites?

Iron and sulfur

Iron and copper

Copper and gold

Gold and sulfur

A

Iron and sulfur

57
Q

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

A

Reducing the number of pathogens

58
Q

What microbial process causes sewer mains to fail?

Biodeterioration

Eutrophication

Annomox reactions

Bioremediation

A

Biodeterioration

59
Q

Which of these is most likely to be a biodegradable polymer?

Polystyrene

Polypropylene

Teflon

Polyhydroxybuterate

A

Polyhydroxybuterate

Microbiology (BIOL 286) (36 decks)

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