Chemiosmosis

Descripción

(Membrane Proteins) Structural Basis for Biological Function Test sobre Chemiosmosis, creado por gina_evans0312 el 14/12/2013.
gina_evans0312
Test por gina_evans0312, actualizado hace más de 1 año
gina_evans0312
Creado por gina_evans0312 hace alrededor de 11 años
559
0

Resumen del Recurso

Pregunta 1

Pregunta
Tenet 1- The membrane should be permeable to protons
Respuesta
  • True
  • False

Pregunta 2

Pregunta
Tenet 2 - An electron transport chain powers the pumping of protons across a cell membrane
Respuesta
  • True
  • False

Pregunta 3

Pregunta
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)
Respuesta
  • True
  • False

Pregunta 4

Pregunta
Tenet 4- The ATP synthase should NOT also act as an ATP translocator
Respuesta
  • True
  • False

Pregunta 5

Pregunta
Why does disrupting the inner mitochondrial membrane increase alkylisation of the medium?
Respuesta
  • 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

Pregunta 6

Pregunta
Why does O2 injection acidify the membrane and prove chemiosmotic theory?
Respuesta
  • 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

Pregunta 7

Pregunta
The number of protons pumped is substrate dependent
Respuesta
  • True
  • False

Pregunta 8

Pregunta
What is this the symbol for in the protonmotive force equation?
Respuesta
  • Change in electrical potential
  • Change in pH
  • The Farraday constant

Pregunta 9

Pregunta
Put the Protonmotive force equation in order; Change in PMF = _ - (_ x _) A = Farraday constant B = Change in pH C= Change in electrical potential
Respuesta
  • C-B-A
  • B-C-A
  • A-B-C

Pregunta 10

Pregunta
Short circuiting the protonmotive force generation system causes the energy to be released as heat
Respuesta
  • True
  • False

Pregunta 11

Pregunta
The number of protons pumped in a full cycle is cell dependent
Respuesta
  • True
  • False
Mostrar resumen completo Ocultar resumen completo

Similar

Alternative Oxidase
gina_evans0312
Cyt C Oxidase & F1F0
gina_evans0312
Prostaglandin Synthase & Multi-Enzyme Complexes
gina_evans0312
Electron Transport Chain
gina_evans0312
Oxidation Practical
gina_evans0312
Photosynthesis and Respiration
Jessica Phillips
Protein Folding- The Basics
gina_evans0312
Molecular Motors- Helicases
gina_evans0312
Constituative Chaperones
gina_evans0312
Heat Shock Proteins
gina_evans0312
Protein Structure Pt. 1
gina_evans0312