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31 Cards in this Set

  • Front
  • Back
The Kreb's Cycle begins the same as ____ glycolysis but when O2 is present the pyruvate continues on to the Kreb's Cycle and ____ in the _____
fast
ETC
mitochondria
____ is the addition of an electron to an atom or molecule
reduction
____ is the process of removing an electron
oxidation
(OIL RIG-->ox is losing reduction is gaining)
redox reactions are always ___ and involve the transfer of _____
coupled
H+
main reaction of krebs cycle is
pyruvate + NAD +CoA --> AcetylCoA + CO2 + NADH +H
in the primer step of the kreb's cycle in the presence of oxygen pyruvate from glycolysis is converted to _______
Acetyl CoA
Acetyl CoA enters the kreb's cycle and forms ____
ATP, CO2 and coenzymes (NADH, FADH)
the fuel source for krebs cycle is _____ it is a continuation of _____ and it is located in the ______
CHO
slow
mito matrix
Functions of the Kreb's cycle are
produce NADH and FADH2 for ETC
make ATP
produce CO2
Why does the kreb's cycle spin twice for every slow round of glycolysis?
2 pyruvates
a _____ NADH gives an H to FAD in the ____ in the _____ shuttle. 2NADH-->_____+_______. Loss of one potential ATP.
cytoplasmic
mitochondria
glycerol-phosphate
2FADH
4ATP
For every NADH produced there are ___ ATP and for every FADH2 produced there are ____ATP
3
2
in the lactate shuttle a _____ NADH reduced pyruvate to _______ which moves inside the mitochondria, converts back to pyruvate and gives H to ___ in the mitochondria
cytosolic
lactate
NAD+
In the lactate shuttle 2NADH used to reduce 2 NADH to ____ which move into the mito. Then they're converted to 2 mito pyruvate +2NADH which yields ____ ATP
lactate
6
the lactate shuttle is used more during ____ intensity activity
high
Is O2 used during the Kreb's cycle?
Not directly but it is important in the ETC
How many ATP and NADH do you get from glycolysis when using 1. glucose and 2. glycogen
1. 2 ATP, 2NADH (4 or 6 ATP from ETC)
2. 3 ATP, 2 NADH (4 or 6 ATP from ETC)
How many ATP do you get in the primer step?
2NADH (3ATP each from ETC)
What is the final count of ATP in the Kreb's cycle?
(with primer 2NADH and 6 ATP)
2 ATP
6NADH (3ATP each from ETC)
2 FADH2 (2 ATP each fro mETC)
therefore 30 ATP for 2 spins
how many ATP from glucose when using lactate shuttle?
?
how many ATP from glycogen when using GP shuttle?
?
the Malate/Aspartate shuttle is mainly for ___ muscle and it transfers electrons to _____
cardiac
NAD+
what is the function of these NADH shuttles?
to get cytosolic NADH from glycolysis into the mitochondria
Protons are pumped through gates _______
1, 2 and 4 (4 passes e-s to O2)
NADH enters at gate ___ and can pump ___H
1
10
FADH2 enters at gate ___ and can pump __H
2
6
ATP is phosphorylated to ADP + Pi at gate
5
ETC is continuation of ____ glycolysis and located in the _____. It makes ___ and produces ____.
slow
inner mito mem
ATP
H2O
ETC sustains ___ minutes of activity such as ____
2
marathon, basketball game, sitting in class
After the electron transport chain there are ____ ATP restored if started with glucose and ____ ATP if started with glycogen
36 or 38
37 or 39
The purpose of oxygen is to be the _____
final acceptor of electrons