PART 5 Flashcards
What is the fourth sequence of Oxidative Phosphorylation
Complex IV
What is complex IV also known as
Cytochrome oxidase
How many subunits does Complex IV has?
13, one of which is cytochrome a3
Where does the Cyt C (from complex III) flow to in complex IV?
Cyt c flows to Cyt A
From Cyt A3, electrons are transferred to ___
O2
How many protons does NADH pump out?
Six H+ (protons)
How many protons does FADH2 pump out?
Four H+ (protons)
Which theory states that electron transport is accompanied by an accumulation of protons in
the intermembrane space of the mitochondrion, which in turn creates
osmotic pressure; the protons driven back to the mitochondrion under this pressure generate ATP.
Chemiosmotic theory
The energy-releasing oxidations give rise to proton pumping and a ________ is created across the inner mitochondrial membrane
ph gradient
This proton gradient provides the driving force to propel protons back into the mitochondrion through the enzyme complex called
proton translocating ATPase
Protons flow back into the matrix through channels in the F0 unit of _______
ATP synthase
The oxygen in the Chemiosmotic Pump provides the energy for the conversion of ____ to _____
ADP —–> ATP
How many ATP does the oxidation of NADH give
3ATP
How many ATP does the oxidation of FADH give?
2ATP
For each two carbon acetyl unit entering the citric acid cycle , how many NADH AND FADH2 do we get
- 3 NADH
- 1 FADH2
