440749
Descrição
Quiz por gina_evans0312, atualizado more than 1 year ago
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Criado por gina_evans0312
quase 11 anos atrás
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Questão 1
Questão
Tenet 1- The membrane should be permeable to protons
Responda
- True
- False
Questão 2
Questão
Tenet 2 - An electron transport chain powers the pumping of protons across a cell membrane
Responda
- True
- False
Questão 3
Questão
Tenet 3- Energy transducing membranes must have special systems allowing ions and metabolites to pass (to maintain osmotic pressure in the case of a high membrane potential)
Responda
- True
- False
Questão 4
Questão
Tenet 4- The ATP synthase should NOT also act as an ATP translocator
Responda
- True
- False
Questão 5
Questão
Why does disrupting the inner mitochondrial membrane increase alkylisation of the medium?
Responda
-
The inner membrane becomes more permeable and protons enter the mitochondria down the concentration gradient
-
The inner membrane becomes more permeable and protons leave the mitochondria down the concentration gradient
Questão 6
Questão
Why does O2 injection acidify the membrane and prove chemiosmotic theory?
Responda
-
The O2 allows protons to be pumped out of the inner membrane into the solution, acidifying it
-
The O2 allows protons to be pumped out of the solution into the mitochondria acidifying it
-
The medium then alkylises as they flow back in
Questão 7
Questão
The number of protons pumped is substrate dependent
Responda
- True
- False
Questão 8
Questão
What is this the symbol for in the protonmotive force equation?
Responda
-
Change in electrical potential
-
Change in pH
-
The Farraday constant
Questão 9
Questão
Put the Protonmotive force equation in order; Change in PMF = _ - (_ x _)
A = Farraday constant
B = Change in pH
C= Change in electrical potential
Responda
-
C-B-A
-
B-C-A
-
A-B-C
Questão 10
Questão
Short circuiting the protonmotive force generation system causes the energy to be released as heat
Responda
- True
- False
Questão 11
Questão
The number of protons pumped in a full cycle is cell dependent
Responda
- True
- False
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