Photosynthesis & its Mechanism Video Lecture - Class 10

club chillin today we are going to study
something about an important phenomena
that scholars photosynthesis is you are
in that pit is a process by which
phototrophic organisms that is the brain
times they prepare will fall through
regarding photosynthesis it is a
biochemical process of manufacture of
organic and carbon dioxide in water with
the help of solar energy inside
chlorophyll containing cells fox season
is liberated simple carbohydrate or
sugar is the mean product from which
other organic substances formed the
equation for photosynthesis is see you
too that is carbon dioxide combines with
water molecules in the presence of
sunlight and chlorophyll release the
products as glucose that is say 6h 12 46
thus oxygen is released and what that is
also Phillies as a byproduct of this
reaction excess of glucose is stored as
starch to function as internal energy
reserve to be used as and then require
it is simpler to store attic like ocean
as energy reserve in our body most of
the photosynthesis occurs in leaves
which are green in color beautifully
small amount of photosynthesis also
takes place any young green stems
regarding the raw materials or basic
requirements of photosynthesis there are
four basic things which are required the
first gen for most raw material for
photosynthesis is for presence of
chlorophyll the second is carbon dioxide
third one is water and the forces light
let us solar energy now regarding
chlorophyll plant-specific pigment
molecules for absorption of light energy
there are three types of photosynthetic
pigments these are the green chlorophyll
chlorophylls orange colored carotenes
and yellowish reference so chlorophyll
pigments are three times the green
pigments are the chlorophyll pigments
the orange pigments are the cairo teens
and the yellowish pigments are
xanthophylls carotenes exemplifies are
collectively called carotenoids
chlorophylls are of two main types
chlorophyll a and chlorophyll me
chlorophyll a is called primary
photosynthetic England as it takes part
in the conversion of light energy to
chemical levels other pigments absorb
the energy of Wales pavements and hand
over the energy to chlorophyll molecules
through resonance the second most
important basic requirement for
photosynthesis is carbon dioxide the
landlines obtain it from the atmosphere
while aquatic plants absorb the same
from water atmosphere contains about
point zero three six percent for carbon
dioxide it enters the leaf through
stomata stomatal function has to auger
operated phones their guard cells have
clicker on the inner side and gina of
the outer side the third most important
raw material for photosynthesis worker
land plants absorb water from soil
through their roots the absorb water is
transported to photosynthetic areas
suicidal minerals are also transported
along the water they I use instant
solve different targeting substances
like sulfur in proteins force 4s and
implications magnesium and chlorophyll
etc 99% of the observer is lost through
transpiration only a small quantity of
water is used in photosynthesis as
hydrogen total the next gen most
important raw material for
photosynthesis is light it is Lance
listen flight from Sun that is called as
solar energy for plants and is the basic
source of radiant energy now visible
part of the electromagnetic radiations
is responsible for photosynthesis its
wavelength normally rages from 3 90
nanometer to 760 nanometer and the
maximum photosynthesis in the
red region for the other hand minimum
photosynthesis occurs in those green
region of visible spectrum because green
parts of plants reflect all of the green
light the next part of this is what are
the various steps for the photosynthesis
or in other words you can say the
mechanism for photosynthesis
photosynthesis basically is divided into
two steps the first step is called
x-lite reaction pender second step is
called as a dark reaction
it means the whole photosynthesis
process it is completed by completing
these two reactions or new light
reaction in the equation the light
reaction is also called as a
photochemical process and it was
discovered by Robert Hill therefore it
is also called as a kills reaction on
the other hand dark reaction is called
as a thermo chemical reaction it was
discovered by Melvin Kelvin and Benson
therefore it is also called as calvin
cycle when he is telling the details for
the light reaction it in turn is divided
into three steps let us study those
talks on our double or form it is
divided into three steps the first step
is called as photoexcitation
the second step is called as photolysis
and the third step is called as
photophosphorylation footwear excitation
involves the little more light in the
form of packets that is called as photos
during this versus chlorophyll molecule
receives a light in the form of small
energy bundles which our quadrants
photons after receiving these photos the
chlorophyll molecule become excited to
higher energy level it gets excited to
hire and Anjali the second step into
reading right will change for us photo
license it is also called as
photo-oxidation of water this is a
reaction in which water molecule breaks
up into hydrogen ions an oxygen molecule
oxygen is located here as a by-product
and hydrogen ions are used for the
production of nadp that is by equation
nadp when it receives hydrogen ions it
will be reduced to nadph to photo
phosphorylation is the third step of
light reaction during this versus ATP
for energy is produced that is adenosine
triphosphate which is a chemical form of
energy it takes place in quarter zones
magnesium ions and inorganic phosphate
is required to convert kdp that is
adenosine diphosphate into ATP this
reaction takes place in love
of magnesium files so if we clubbed
together on the steps of the light
reaction it is divided in 15 steps
photoexcitation photolysis
photophosphorylation it photoexcitation
the chlorophyll molecule receives the
sunlight in the form of energy packets
which are far less photons in the second
step the water molecule breaks up into
hydrogen and oxygen is released these
hydrogen ions are used for the reduction
of an ATP molecule to NADPH tube with
the third step photophosphorylation
energy is released in the form of ATP
that is adenosine triphosphate the
reaction for this is a DP combines with
inorganic phosphate at the presence of
magnesium ions then it will release ATP
as energy the site for light reaction is
grandma portion of a chloroplast next
step for photosynthesis is dark reaction
it is again divided into three steps the
first is called s carboxylation the
second one is known as a basis at the
third step for the reaction this code is
regeneration
till the in the carboxylation process
carbon dioxide is captured by carbon
dioxide except errs like are you VP inci
three lance and PEP in c4 plants these
are you between PEP argha except errs of
carbon dioxide and they accept carbon
dioxide in the presence of enzymes which
are known as Rubisco and the second
enzyme is known as pepco for the second
step of the reaction the captured carbon
dioxide is assimilated into glucose at
the presence of hospitals and I so many
designs and travelers bisphosphate that
is ru vp easily generate a fact that is
carbon dioxide which is which was
captured by carbon dioxide acceptor xin
the first step which will help in the
assimilation of glucose that is c6h12o6
for in other words we can say thank
leukoc synthesis in the second step of
that reaction which is called as
synthesis the third and the final step
for the dark reaction is regeneration
regeneration is whatever carbon dioxide
except ters are present in plant whether
it is a city block like ru vp this will
be regenerated better so that the cycle
can continue now the site for site for
dark reaction is
stroma of chloroplast if we club all the
steps of bad reaction again it consisted
of three steps carboxylation services
regeneration in the first step which is
carboxylation the carbon dioxide except
Earth's life are you Vivi and PEP in c3
and c4 constantly seek our without sight
in the presence of enzymes like rubisco
and Pafko in the second step whatever
carbon dioxide is accepted by the verve
and upset acceptance that they give rise
to oh that may be assimilated into
glucose ultimately the glucose is
released in the dark reaction of
photosynthesis which other it is a
meaningful four runs in the third and
the last step of the reaction that is
what is regeneration are you weepy will
be regenerated back are you bb his rival
owes this fourth phosphate and the full
form of fifi is forceful can all
forceful in on vibrate