Quiz
Bacterial Metabolism & Industrial Microbiology
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Questions in this quiz (33)
1The chemical processes that occur within a living organism in order to maintain life is known as its [blank_start]metabolism[blank_end]
- Ametabolism
2Metabolism consists of two processes:
[blank_start]Catabolism[blank_end] = Breakdown of chemical compounds via exergonic reactions
[blank_start]Anabolism[blank_end] = Biosynthesis or chemical compounds via endergonic reactions- AAnabolism
- BCatabolism
3Exergonic reactions [blank_start]release energy[blank_end]
Endergonic reactions [blank_start]require energy[blank_end]- Arequire energy
- Brelease energy
4We have already established that organisms can be classified based on their energy source; Chemotrophs and Phototrophs. The Chemotroph category can be broken down into two further subcategories based on whether the organism utilises organic or inorganic substances:
[blank_start]Chemoorganotrophs[blank_end] = Utilise organic compounds to obtain energy
[blank_start]Chemolithotrophs[blank_end] = Utilise inorganic compounds to obtain energy- AChemolithotrophs
- BChemoorganotrophs
- CChemoorganotrophs
- DChemolithotrophs
5
Different types of bacteria based on oxygen requirement:
1: [blank_start]Obligate[blank_end] aerobes need oxygen because they cannot ferment or respire anaerobically.
2: [blank_start]Obligate[blank_end] anaerobes are poisoned by oxygen.
3: [blank_start]Facultative[blank_end] anaerobes can grow with or without oxygen because they can metabolise energy aerobically or anaerobically.
4: [blank_start]Microaerophiles[blank_end] need oxygen because they cannot ferment or respire anaerobically. However, they are poisoned by high concentrations of oxygen.
5: [blank_start]Aerotolerant[blank_end] organisms do not require oxygen as they metabolise energy anaerobically. Unlike obligate anaerobes however, they are not poisoned by oxygen.- AAerotolerant
- BMicroaerophiles
- CFacultative
- DObligate
- EObligate
6The difference between aerotolerant and obligate anaerobic bacteria is that whilst they both produce energy anaerobically aerotolerant bacteria are not poisoned by oxygen where obligate anaerobic bacteria are.
- ATrue
- BFalse
7The difference between aerotolerant and obligate anaerobic bacteria is that whilst they both produce energy anaerobically aerotolerant bacteria are not poisoned by oxygen where obligate anaerobic bacteria are.
- ATrue
- BFalse
8Match the mechanism of energy production to its description:
[blank_start]Substrate level phosphorylation[blank_end] = ATP is generated when a phosphorylated intermediate transfers its phosphate to ADP
[blank_start]Oxidative Phosphorylation[blank_end] = ATP is synthesized during the transport of electrons along an electron transport chain to an electron acceptor
[blank_start]Photophosphorylation[blank_end] = Similar to oxidative phosphorylation but electrons are provided by reduced chlorophyll molecules- APhotophosphorylation
- BOxidative Phosphorylation
- CSubstrate level phosphorylation
9Chemoorganotrophic bacteria obtain energy (ATP) from carbohydrates by which two basic processes? Alphabetical order.
[blank_start]Fermentation[blank_end]
[blank_start]Respiration[blank_end]- ARespiration
- BFermentation
10How is the ATP produced in fermentation?
- ASubstrate level phosphorylation
- BOxidative phosphorylation
- CPhotophosphorylation
11The Embden Meyerhof pathway is also known as [blank_start]Glycolysis[blank_end] and is the most common biochemical pathway for the fermentation of glucose.
- AGlycolysis
12The process of glycolysis yields [blank_start]2[blank_end] molecules of ATP
- A2
- B4
- C6
- D8
13One of the main factors of fermentation is that NAD- and NADP+ must be reduced back into NADH and NADPH
- ATrue
- BFalse
14Yeast is grown is grown in two stages:
Firstly, an [blank_start]aerobic[blank_end] stage to cause yeast to grow and multiply
Secondly, an [blank_start]anaerobic[blank_end] stage to cause yeast to produce energy via fermentation, thus producing ethanol as a by product.- Aanaerobic
- Baerobic
- Caerobic
- Danaerobic
15Which type of fermentation occurs in E.coli?
- AMixed acid fermentation
- B2,3-Butanediol Fermentation
- CPropionic Acid Fermentation
- DButyric Acid Fermentation
16Which of the following types of fermentation produces the holes seen in swiss cheese due to the release of CO2?
- APropionic Fermentation
- BButyric Acid Fermentation
- C2-3,Butanediol Fermentation
- DMixed Acid Fermentation
17Which of the following types of bacteria utilises Butyric Acid Fermentation?
- AClostridium
- BKlebsiella
- CEnterobacter
- DStreptococcus
- ELactobacillus
18Different microbes produce different fermentation end products:
Lactic acid bacteria produce lactic acid which is important for the [blank_start]dairy industry (yoghurts, etc)[blank_end]
Propionic bacteria produce propionic acid, acetic acid and CO2 which is important for the [blank_start]use in Swiss cheese[blank_end]- Adairy industry (yoghurts, etc)
- Buse in Swiss cheese
19Bioethanol used in some modes of transport is typically produced by Saccharomyces Cerevisiae
- ATrue
- BFalse
20In [blank_start]yeasts[blank_end], 10-20% of glucose is degraded via the Pentose Phosphate pathway
- Ayeasts
- Bmolds
21In terms of respiration, how is the ATP produced?
- ASubstrate-level Phosphorylation
- BOxidative Phosphorylation
- CPhotophosphorylation
22There are two types of respiration:
Aerobic Respiration, whereby [blank_start]oxygen[blank_end] is the final electron acceptor and H20 is formed
Anaerobic Respiration, whereby other inorganic molecules, most commonly [blank_start]nitrate[blank_end], is the terminal electron acceptor.- Anitrate
- Boxygen
23In the TCA cycle of respiration, pyruvate is fully [blank_start]oxidised[blank_end] to CO2.
- Aoxidised
- Breduced
24The four carbon molecule which combines with Acetyl-Coenzyme A to become a six carbon molecule for the TCA cycle is called [blank_start]Oxaloacetate[blank_end].
The six carbon molecule in question is called [blank_start]Citrate[blank_end].- AOxaloacetate
- BCitrate
25How many Acetyl Coenzyme A compounds are yielded from the Pyruvate produced at the end of glycolysis?
- A1
- B2
- C3
- D4
26The products of the TCA cycle are:
[blank_start]3[blank_end] molecules of CO2
[blank_start]4[blank_end] molecules of NADH
[blank_start]1[blank_end] molecule of FADH- A1
- B4
- C3
27Electrons from the TCA cycle are transferred to the electron transport chain via which of the following?
- ACO2
- BNADH
- CFADH
- DGTP
28Which of the following is also involved in fatty acid biosynthesis and can be produced directly from ketone bodies?
- AAcetyl CoA
- BOxaloacetate
- CSuccinyl-CoA
- DAlpha Ketoglutarate
29The generation of an electrochemical potential across a cell membrane via the trapping of H+ions on one side and OH- ions on the other in order to drive the electron transport chain is known as the [blank_start]proton motive[blank_end] force
- Aproton motive
30The proton motive force is the driving force for ATP synthesis via the membrane enzyme complex called [blank_start]ATP synthase[blank_end]
- AATP synthase
31The terminal electron acceptor in the electron transport chain is [blank_start]Oxygen[blank_end]
- AOxygen
32How many molecules is created in total by Aerobic respiration?
[blank_start]38[blank_end]- A38
33Anaerobic respiration is unique to prokaryotes (where terminal electron acceptors other than oxygen are used)
- ATrue
- BFalse
Information
- Description
- The first afternoon of the course - second lecture given.
- Author
- Matthew Coulson
- Language
- English
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