YouTube Transcript:
Oxidative phosphorylation (Electron Transport Chain/CHemiosmosis) Tagalog Explained

okay so we have the last part of our
cellular respiration
we have oxidative phosphorylation or our
electron transport
chain so that's this will be the last
step for us guys
so no need for that so
first why do we need oxygen
organisms we need oxygen in order to
live so as we all know that
if we hold our breath what could happen
is that
capacitor now we could get dizzy and
then block out or even cause
death capac
oxygen nothing okay but have you ever
wondered
why that's the case or what exactly your
body does with
all that oxygen so we just all know now
what what do they do it's adding oxygen
okay so the reason behind as it turns
out you need oxygen so your cells can
use this molecule during
oxidative phosphorylation or the final
stage of cellular respiration
so hindi sha immediately nega gamete
during glycolysis pyruvate oxidation and
then the krebs cycle
actually oxygen is being used during the
third
and final step of our cellular
respiration
so oxidative phosphorylation is made up
of two closely connected
components that's why i'm at the last
inter interchangeable language
components nato the first one is our
electron transport chain and the other
one is chemi
osmosis so oxidation or oxidative
this phosphorylation net then union
electron transport chain and then
chemiosmosis that would be your
phospho relation okay so you
pass through now adding manga electrons
from one molecule to another your new
electron transport chain
and then for chemiosmosis is the
formation
of our atp
okay because of a certain radiant
ion so where does oxygen fit into this
picture so
oxygen sits at the end of the electron
transport chain
hosa and it accepts the electron and
picks up protons to form
water so yunyung is adding
um
[Music]
glucose okay and it will pick up protons
oxygen it will pick up protons in order
to form
water molecules so oxygen
electrons the electron transport chain
will stop running
molecules and atp will no longer be
produced by
chemiosmosis because young atp they
never
produce lungs because of the gradient
but since
electrons proceed past the next
step hydrogen ions from one
uh from the matrix upon the center
membrane space
okay so without enough atp in return
cells cannot carry out their actions
that they need to
function okay so that could lead to the
death of
an organism
in the function eventually our body
could die
okay so let's proceed with our electron
transport chain first
so electron transport sheet nothing is
made
involving four large complexes
labeled as one two four one two three
four
and so in eukaryotes many copies of
these molecules are found in the inner
mitochondrial membrane catalytic
cohanina and then of course
the prokaryotes snattin they are just
found in the plasma membranes uh
cell membrane lung nila meron capoxa
prokaryotes pero pogba things are
eukaryotes
it's happening in the mitochondria
specifically in the
crystal or in the inter membrane at the
inner membrane inner membrane i should
say
okay so eternal complex one complex two
complex three and
complex four so ethernet inter membrane
okay so from the diagram
all of the electrons that enter the
transport chain come from nadh and fadh2
otranga
so nadh from glycolysis pyruvate
oxidation and
krebs cycle nfdh to falling language
cycle so what happens during etc
so in the matrix you nadh then above
during the citric acid cycle pyruvate
oxidation
glycolysis and ion
i but the deposit on electrons is a
complex number one
at once among the positioning electrons
are complex number one malamang
and hydrogen ion
plus and it's going to release a proton
into the
matrix okay so fat h2 on the other hand
deposits electrons in complex two okay
turning it into fat and releases two
hydrogen ions
i remember guys an nadh muggy start k
complex one might deliver
so fadh2 complex two language start mic
delivering
electrons
okay so the electrons from complexes one
into our pass to the small mobile
carrier queue
so once in a pass and as a complex one
complex two image electrons
mobile carrier and then carrier q
transports the electrons to
complex three pascal pascal at electron
transport chain
which then after complex three it passes
to cytochrome
c and lastly cytochrome c passes the
electrons to complex
four which density complex foreign
electrons
it will form water remember that
it takes two electrons
okay oxygen and an oxygen molecule and
two hydrogen ions to form one water
molecule so complex is one
three and four use energy release as
electrons move from a higher
to allow energy to pump protons out of
the matrix and into the inter membrane
space so italian makaharo nanometallina
proton
gradients
because its electrons are higher in
energy
level so as electrons move through
complex one in a series of redox
reactions
the complex uses this energy to pump
protons
from the matrix upon the inter membrane
space on the other hand fadh2 have a
lower energy level that's why
hindi nagi starts a complex one it
starts with complex two which does not
pump
protons across the membrane
okay because of this bypass each fadh2
molecule causes
fewer protons to be pumped and
contributes less to the proton
gradient than an nadh
so overall what does the electron
transport chain do for the cell it has
two
important fraction functions number one
is to regenerate the electron carriers
so we have nadh and fadh2 magiking
any d plus and fed
okay number and next this is important
because the oxidized forms oxidability
oxidized forms
ition ah sorry sorry nad plus nfed
big sabihin they have lost an electron
forms of these electron carriers are
used in glycolysis and the citric acid
cycles
glycolysis anticitric acid cycles
and number two it makes a proton
gradient gusto nothing new
formula protein gradient because
name process than chemiosmosis so when
you say chemiosmosis
this is the process in which energy from
a protein gradient is used
to make atp proton gradient
so ingredient is union chemi in a part
and then osmosis is
moving from one moving through i
membrane and form of course a certain
energy which is in the form of
atp okay so for instance chemiosmosis is
also involved in the light reaction of
photosynthesis
so complex one three and four of the
electron transport chain our
chain are proton pumps so as electrons
move energetically downhill
the complexes capture the release energy
and uses to pump
your hydrogen ion statin from the matrix
to the inner
membrane space
so an electrochemical gradient across
the inner mitochondrial
membrane where in antarctic
gradient nato is a proton motive
force okay
instead after being turned by water
hydrogen ions
okay and in turn you atp synthase and
gagawinia
it is going to add a phosphate group the
one guy adp
through the protein gradient into the
form e t
p so basically get into your area guys
so what happens is after presenting
citric acid cycle nitin
submarine diet nadh gonna produce at
fadh tena produce so nadh will
give off its electron at once on the gif
of
electron ion pumping hydrogen ions from
the matrix papuantesa
inter membrane space so nadh will become
nad plus and hydrogen ion
and then simultaneously afad h2
will deliver its electrons k complex two
but since the complex two a hindi
hydrogen ions from the matrix from the
inter membrane space
and then pass a high cytochrome c and c
will pass it to four and then four
pop-up nanometer hydrogen ions and the
new electrons and nandito i4
will give off will give of its electrons
to
our oxygen and that elect
electrons will again magnesium oxygen
will attract two hydrogen ions forming
water molecules
electrochemical gradient detox inter
membrane space
meaning there is a high concentration of
hydrogen ions due to the inter membrane
space that in and what will happen
is proton motive force and that proton
motive force
will drive this atp synthase
to add a phosphate group
chi adp to form atp
okay so generally that is what is
happening
in the electron transport chain
and then chemi osmosis so all in all
antarctica is oxidative phosphorylation
okay oxidative because of the continuous
losing of electrons here and then
lithium ion is phosphorylation with the
formation of
our atp
okay so sinatra
alexa citric acid cycle and sugglycola
subglycolysis paramagame
so that's it for our electron transport
chain