Cellular Respiration as a Process Video Lecture | Biology Class 11 - NEET

hello friends this video on respiration
and plants part 3 is brought to you by
exam feel calm no more fear from exam so
let us now define it what is enemy
respiration in plants why do we call it
as cellular respiration because this
process of respiration takes place
inside each and every cell inside the
plant so inside every cell the process
of respiration is taking place because
when so please try to understand this
when photosynthesis take place food is
prepared only the green parts of the
plant and then the food is transported
through flow into all of the different
parts of the plant so basically that
food reaches each and every cell of the
planet now these in every cell of the
plant needs to convert that food they
need to convert the glucose into energy
in the form ATP so expedition has to
take place inside each and every cell
that is why it is part cellular
respiration so it is the breakdown of
food to release energy consents because
the cells are end of the day it is the
same which means energy to perform all
this and their activities so break down
on food to release energy in cells so
when I say food food is nothing but blue
person and then I say to please energy
this energy is released in the form of
ATP molecules so now the question is how
this breakdown of food takes means how
the food is broken down now when I say
break down on food what actually happens
is the food molecules are oxidized so it
is oxidation of glucose because food
molecule is nothing but glucose so
oxidation of the food molecules takes
place to produce carbon dioxide water
and energy so these are the products of
the process of the respiration so all
these things are produced
carbon dioxide water
energy now this energy is trapped in the
form of ATP molecules which can be
utilized by the cell as and when
required right so that is the concept of
cellular respiration so whatever food we
are eating that is in the form of even
if it is stored in the form of starch
that starch gets converted into the
simplest form that is a monosaccharide
that is glucose so glucose will be
oxidized to produce carbon dioxide water
and energy this energy is important this
energy is going to be stored as ATP
money trees correct so now in this
lesson we are going to talk about this
this particular process this particular
process of respiration
now implants let let me try to explain
you the background property before we
actually start with the equations of
respiration
now implants be on home that they
prepare food by photosynthesis right so
what happens during the process of
photosynthesis during the process of
photosynthesis they take in carbon
dioxide because they need carbon dioxide
as an input to produce glucose they take
in carbon dioxide and then they prepare
food in the form of glucose right now
this glucose which is prepared will now
be oxidized as a part of respiration so
when the glucose is oxidized this
process of oxidization of glucose
oxidation of glucose is known as
respiration so during the process of
respiration what wiII happen glucose
will be oxidized to produce carbon
dioxide water and energy so you see
during photosynthesis carbon dioxide was
taken in whereas do
raishin carbon dioxide is given out also
as a result of respiration a lot of
energy is produced which is stored in
the form of ATP molecules now utilizing
these energy the plants will perform all
the metabolic activities all the
processes like a reproduction movement
transport even for photosynthesis also
it means a lot of energy so the plants
can utilize all these energy the plants
will grow and again these plants will
perform the process of photosynthesis so
please I'm trying to understand the role
of photosynthesis and respiration in the
life of a plant and just try to see how
photosynthesis and respiration they
complement each other so whatever is the
input in photosynthesis is the output in
respiration and vice versa so Albert I
oxide was an input in photosynthesis
whereas carbon dioxide is a product in
respiration so whatever carbon dioxide
is produced as a result of respiration
the same carbon dioxide can be utilized
during photosynthesis right okay so you
got an idea about what is the role of
respiration in the life of some plant
okay so now let us talk about the
cellular respiration as a process so we
are now going to look about only the
process of cellular respiration how that
conversion of glucose into energy is
taking place so during this process
respiratory substrates are oxidized so
there you got a new term till now I was
telling the food is oxidized food
molecules so basically respiratory
substract is a term for those food
molecules so what our respiratory
substract these are the compounds which
are oxidized to release energy giving
this relation that will give me
example of respiratory substract what
kind of compounds am I talking about
just now I going to write the four
volumes and what is that food for
example in case of glands the food is
prepared in the form of glucose and
water scruples that is a carbohydrate so
carbohydrates are an example of
respiratory substrates now sometimes
there are other respiratory subscribes
also for example proteins fats they can
also be oxidized to produce some energy
now again it values the amount of energy
that will be produced that might beg
from one respiratory subscribe to
another but these are all examples of
the recipe returning substrates so you
talk about proteins you talk about you
cause you talk about the fatty acids
they are all examples of respiratory
substrates so this is the name given to
them the compounds so now the question
is what happens during oxidation so what
is the special thing which is happening
during oxidation because of which so
much of energy can be released now when
simple the concept is very simple when
we talk about these substrates whether
you talk about carbohydrates or you talk
about proteins or you talk about facts
they are all complex structures right so
if you look at the structure of this
protein of this fatty acids or this
carbohydrate none of them are very
simple right there are complex
structures involving a lot of bonds so
many bonds are there and you know
breaking of a bond always release energy
and for forming a bond you need to
provide energy so that is a concept
breaking a bond will release energy
whereas to form a bond that is forming a
bond with utilize energy so this is a
simple concept which we all know so here
when we are talking about these complex
respiratory substract involving multiple
when these bonds break what may happen
to take lot of energy will be released
and this is the energy which will be
utilized to synthesize ATP so when we
talk about the process of oxidation
during respiration we will see that as
the process of oxidation take place more
and more bonds are broken and when bonds
are broken a lot of energy is released
and those energies are energy is
utilized for synthesizing ATP and then
ATP molecules and press kept inside the
plant now this process of bond breaking
is not a single step process it is not
that you take a molecule of glucose and
then you oxidizes completely in one step
and all the bonds are broken and a lot
of energy is released that is not how it
happens now this breaking of bond takes
place over a number of steps so the
process of respiration is a multi-step
process now there are reasons why it is
a multi-step process it could have been
the single step process but in that case
then a lot of energy will be released in
just one step
there are chances that a good amount a
good portion of the energy might get
wasted in the form of heat but when it
is getting released in smaller amounts
with multiple steps then it can be
utilized in a better way so the energy
release you need step can be utilized or
can be coupled with the synthesis of ATP
so that is why in cellular respiration
in some multi step process so we will
understand this process step by step so
now we got to know more that okay a lot
of energy is what you get produced now
the question is how does this energy
help where exactly this energy helps in
case of a plant or an animal so now the
question is how is this energy going to
help plants and animals so where all is
this word energy going to get to stir so
when you talk about the animals it is
going to be used up for all the basic
life activities where they talk about
the
of Taxation you talk about the function
of the heart even hard we need some
energy to do its job to do to act as a
pump in it means energy it mean it will
be required by the brain brain perform
such a critical function in our body so
I know straining person of this energy
will be utilized by the brain some
around seven to eight percent of it will
be utilized by the heart in the other
basic processes for example digestion
and excretion all those things will also
mean some energy so not only the basic
life activity is also the physical
activities which we perform the
additional physical activities I mean so
for that also we need energy
so all these energy necessities will be
fulfilled by this energy which is
produced as a result of respiration now
if you talk about can't sing exams also
have so many basic life activities like
photosynthesis respiration the cellular
activities at the cellular level where a
microcontroller blasts and all of the
cell organelles are doing their own job
the nucleus so they also need energy for
all these purposes so this is where so
these are the so many aspects in plants
where they need energy so this is where
the energy which was released during the
process of respiration is utilized in
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