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Difference between revisions of "Coupling Quiz"

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(Created page with "= Do you feel the Coupling? = :::: '''Note:''' This quiz was made to test your knowledge of mitochondrial terminology of coupling states and to help you understand basic conc...")
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|type="{}"}
|type="{}"}
{ ET } state.
{ ET } state.
||ย  Compared to OXPHOS-capacity, the oxidative ET-capacity reveals the limitation of OXPHOScapacity mediated by the phosphorylation-pathway. By application of external uncouplers, ETcapacity is measured as noncoupled respiration. ย 
||ย  Compared to OXPHOS-capacity, the oxidative ET-capacity reveals the limitation of OXPHOS-capacity mediated by the phosphorylation-pathway. By application of external uncouplers, ET-capacity is measured as noncoupled respiration. ย 




ย 
{The mechanism of cycling of cations across the mitochondrial inner membrane (mtIM), strongly stimulated by permeability transition (mtPT); comparable to the use of protonophores e.g. by UCP1 or cation (Ca2+) cycling, leads to: ย 
{Convert the molar format of the Gibbs force of reaction, ฮ”<sub>k</sub>''F''<sub><u>''n''</u>O2</sub> [kJ/mol], into the electrical format, ฮ”<sub>k</sub>''F''<sub><u>''e''</u>O2</sub> [V]. Which physicochemical constant is required?
|type="{}"}
{ Faraday } constant
|| The '''Faraday constant''', ''F'', [C/mol]. Links the electric charge [C] to amount [mol], and thus relates the [[electrical format]], <u>''e''</u> [C], to the [[molar format]], <u>''n''</u> [mol]. The Farady constant, ''F'' = ''e''ยท''N''<sub>A</sub> = 96,485.33 C/mol, is the product of [[elementary charge]], ''e'' = 1.602176634โˆ™10<sup>-19</sup> C/x, and the [[Avogadro constant]], ''N''<sub>A</sub> = 6.02214076โˆ™10<sup>23</sup> x/mol. The dimensionless unit [x] is not explicitely considered by IUPAC. More info https://www.bipm.org/en/measurement-units/rev-si/
ย 
{What is the meaning of the symbol ''z''<sub>O2</sub>?
|type="()"}
|type="()"}
+ [[Charge number]] of O<sub>2</sub> = 4 ย 
+ [[Charge number]] of O<sub>2</sub> = 4 ย 

Revision as of 00:19, 27 January 2020

Do you feel the Coupling?

Note: This quiz was made to test your knowledge of mitochondrial terminology of coupling states and to help you understand basic concepts of mitochondrial physiology


1 Maximal oxygen flux JkO2 is reached in:

state.

2 The mechanism of cycling of cations across the mitochondrial inner membrane (mtIM), strongly stimulated by permeability transition (mtPT); comparable to the use of protonophores e.g. by UCP1 or cation (Ca2+) cycling, leads to:

Charge number of O2 = 4
Alphabetical order of O2 isotope
Elementary charge of O2 in [C]
Atomic number of O2 = 8

3 How are the units of electric energy [J] and electric force [V] related?

V = JยทC
V = J/(CยทF)
V = J/C
V = (JยทF)/C

4 Express -460 kJ/mol O2 as electrical force in units of volt [V].

- 120 V
- 1.2 kV
-1.2 V
1.2 V

5 Why should we do that?

To feel insecure
To compliment our brain mitochondria
To get free drinks
To express both in identical motive units [MU]


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