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Photosynthesis (Function (Converts light energy into chemical energy…
Photosynthesis
Function
Converts
light energy
into
chemical energy
Types
Light Dependent Reaction
Process
Photon Hits photosystem 2
Electrons
get excited and it moves to the
PEA
It is sent to an
electron accpeter
and through the electron transport chain to
photosystem 1
Some energy is leaked during the transport of electrons through the
electron trasnport chain
and that's what drives the production of
ATP
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Where does the
electron
come from?
Breaking of water molecules.
At the same time, photons hit photosystem 1 and excited the electrons in it
The
electrons
gets sent to the
PEA
The electrons are passed through shorter leg of
electron transport chain
At the end of chain
ATP
and
NAD+
create
NADH
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Where do you get the
electrons
from?
From
photosystem 2
Calvin Cycle
(light independent reaction)
Process
2.
Reduction
6-C molecule is unstable, so breaks into 2 3-C molecules
3-PGA molecules turned into G3P
G3P are used to create carbohydrates
3-C molecules are called 3-PGA
3.
Regeneration
G3P is turned back to RUBP with help of
ATP
The
ATP
and
NADH
from light dependent reaction is used back in Calvin Cycle
1.
Fixation
1 carbon dioxide molecule bind to each of 6 RUBP
Forms 6-C molecule
Chemical Equation
Where?
Occurs in plants(also other living organisms)
Occurs in the membrane of the
thylakoid
.
Where is the thylakoid found?
Found in
chloroplast
Structure
Outer/Inner Membrane
Function
Outer membrane acts as a
semi-permeable
layer, and the inner membrane acts has transport proteins
Thylakoid
Functoin
Has the chlorophyll and photosystems required for
light dependent reaction
Stroma
Function
Has enzymes required for carbon fixation
(Calvin Cycle)
Grana
Function
Just stacks of thylakoids
Where are chloroplast found?
Found on the leaf
Structure
Epidermis
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Spongy Mesophyll
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Cuticles
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Vascular Bundles
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Palisade Layer
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Inter-cellular Space
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Light Dependant Reaction leads to Calvin Cycle
