20b Flashcards
(25 cards)
Proteins in the ETC created the
Electrochemical proton gradient
What ways does the ETC create the EPG?
Actively Transport protons across the membrane (C1/C4)
Chemically remove protons from the matrix (reduction of CoQ/Oxygen)
Release protons into the IMS
Electron transport sets up a
Proton- Motive Force
Energy of proton motive force
Drives Synthesis of ATP
What are the two functional units of ATP Synthase?
F0
F1
Soluble Complex in the matrix
F1
Individually catalyzes the formation of ATP
F1
Integral membrane complex
F0
Transports protons from IMS to Matrix, dissipating the proton gradient
F0
Energy transferred to F1 to catalyze phosphorylation of ADP
F0
Contains 9 subunits
F1
Forms a stalk through the center of the alpha-beta complex, associating with one beta subunit at a time
Gamma Subunit of F1
what two subunits of F1 affects the confrontation
gamma- beta of F1
Which ATP synthase is the integral membrane?
F0
Forms a stalk through the center of the alpha beta complex, associating with one beta subunit at a time
Gamma Subunit
Proton translocation causes a rotation of the
F0 subunit
Central Gamma subunit
How many protons move from the P side —> N side during 1 rotation?
4
Adenosine nucleotide translocase is what type of transporter?
Antiporter
ADP to the matrix
ATP comes out
Phosphate Translocase is what type of transporter?
Symporter (Both H2PO4/H+) are transported to the matrix
The rate of respiration is limited by the availability of ADP, this is called
Acceptor Control
The ratio of ATP/ADP+Pi is normally high, but can fluctuate during which activity?
Exercise
Primary Regulator of OP is based on the substrate
ADP
ATP and ADP also contribute to the coordinate regulation of the
ATP producing pathways
How much ATP are yielded in the complete oxidation of glucose?
30-32
