Oxidative Metabolism - CHO Flashcards
do all 3 systems interact for all activities or just some
all
how many systems often dominate one task
one
when does cooperation between energy systems increase
during transition
what are the 3 stages to complete full oxidation of CHO
glycolysis, Krebs cycle, ETC
is the oxidative system aerobic or anaerobic
aerobic
how much ATP can 1 CHO make
glucose is 32/ glycogen is 33
how much ATP can 1 Free fatty acid make
over 100
what is the oxidative system duration like
a steady supply for hours
what is the most complex of the 3 bioenergetic systems
oxidative
where does the oxidative system occur
in the cells mitochondira
why is the arrangement randomized of mitochondria
- to be by capillaries
- too much O2 damages mitochondria cuz of reactant oxygen species
what does the kreb cycle complete
oxidation of substrates
what other things does the kreb cycle produce
NADH+H+
FADH2
GTP (goes to ATP)
how much pyruvate does 1 glucose molecule make
2, which means 2 acetyl coA and 2 times through the kreb cycle
what happens to energy production in oxidatio reduction reactions
energy production occurs with the transfer of an electron, either adding or removing the electron to a molecule.
oxidation def
removing electrons, getting more positive
reeduction def
adding electrons, getting more negative
NADH+H+ and NAD+
which is oxidized vs reduced
NADH+H+ is the reduced form
so
NAD+ is the oxide form
what is lost when pyruvate goes to acetyl coA
carbon
how is oxidative phosphorylation controled
a negative feedback looop with regulates the kreb cycel
RLE of kreb cycle
Isocitrate dehydrogenase
what does isocritrate dyehydrogenase do
acts like PFK does for flycolysis
regulates ETC
is inhibitd by ATP, but activated by ADP
what breaks down ATP
ATPase
to ADP and Pi
Production yield of Kreb Cycle
2 ATP, 6 NADH+H+ , 2 FADH2
how much atp is made from anaerobic and aerobic
4 or 5
how much NADH+H+ is made from anaerobic and aerobic
10
what is the final electron receptor
oxygen
How are H+ electrons carried to ETC
via NADH, FADH2 molecules
what does H+ combine with on the ETC
O2 to make water
how much of the bodys water comes from the ETC
about 20%
What does the ETC do
complete ATP production from H+ shuttling
what is an ex of a carrier molecule
NAD
it take H+ to ETC
Electrons are passed along a series of what
carriers , whcih are in the inner membrane of mitochondria
In step 5 of ETC, what happens
bring Hydrogen back in to facilitate the production of ATP
NADH+H+ in ETC is how many ATP
2.5
FADH2 in ETC is how many ATP
1.5
does going against the gradient use energy
yes
what is something interesting he compared the ETC to
turbines
Breakdown the net total (33) for a glycogen molecule going through CHO oxidation
glycolysis is 3 ATP
Kreb cycle is 2 ATP
10 NADH is 25 ATP
2 FADH2 is 3 ATP
total is 33
Overall chem rxn of ATP=PCr
PCr to Cr
overall chem rxn of Glycolysis
glucose or glycogen to
pyruvate OR lactate
overall chem rxn of oxidative from CHO
glucose or glycogen to
CO2 and H2O
