Mitochondria Video Lecture - Biology Class 11 - NEET

it's my favorite coming to the most
exciting interesting organelle the cell
the power plants of the cell G energy at
the cell runs on yes you got that one
they are called the mitochondria smooth
organelles somehow you resemble a
bacteria it's a reason for this we're
going to get that interested then
important function function of
respiration respiration inside a cell
okay and why is that important
whenever the cell respires on the
mitochondria does it's bit energy gets
generated in the form of ATP ATP is an
important word I didn't know send
triphosphate it's like a currency you
know of the cell the currency that
drives life inside the cells it has a
smooth outer membrane and an inner
membrane also lets fold it on itself to
give rise to something called crystal so
whenever you see foldings okay always
remember that it is to increase the
surface area and it's important to
increase the surface area because if you
have more place to do something you can
actually do that so by increasing the
surface area we can make as much energy
as possible generate as many ATP
molecules as possible
so more and more energy is actually you
know available for us so some cells like
the muscle cells and nerve cells need a
lot more energy than other cells so they
have a lot more mitochondria see how it
acted it is for different functions but
you know what is the coolest thing about
mitochondria long long long ago they
existed on their own as their own
separate creature and then one day a
eukaryotic cell came along try to eat it
and then eat it and probably then
realize that it's a great thing to have
around and super useful it was very very
smart we kept it with steel and the
mitochondria till today does its own
thing it
is like a little cell of its own it
replicates on its own it divides on its
own it even has a small amount of
genetic material the material called DNA
so I haven't reached the most amazing
part yet about mitochondria since
mitochondria replicates on its own okay
it's actually present only in the egg
cell from the mother it is not there in
the sperm cell of the father and it
doesn't get mixed with the DNA of the
father so you understand what I'm
getting to if it's possible if it's
actually possible we get each one of us
get our mitochondrial DNA from our
mothers so you and I have same
mitochondrial DNA that our mothers have
and this is very very important this
find was very important because there is
this beautiful link which scientists
have actually been able to trace to our
ancestral relationships far far when I
say far I mean really really far back in
time over 200,000 years ago to this
point or this place in Africa a single
mitochondrial Eve or a mitochondria
female who lived in Africa so this means
that we carry our mother's mitochondrial
DNA