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Summary Alevel OCR Biology A notes on Respiration

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Alevel OCR Biology A notes on Respiration from an A* Biology student. Plus a diagram of respiration processes.

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aerobic respiration 36
=


ATP CO2
=
H20
+




2 ATP (O2 ethand
+




ocerobic respiration: yeass=
=




lactate
monmals=



gwusepatallyoxideacceptor No
- Mirochondrial reaction re




Respiration
-transfer of chemical potential energy from which molecules ->
cable energy (ATP)

-



Glucose oxygen
+ -> Cabon dioxide +
Water +
Energy

-energy created/destroyed, energy
is transformed
is from are form to another


(oxidative phosphorylation)
-




mitochondria rod shaped, aerobic respiration enharycles, syncleise ATP
=

in




Inner membrane folded
=


cristal, les permeable, electron transport chain, location of ATP
synthase

oule membrane- smooth, permeable to many small molecules

↳>
internembrace space ↓ pH, I conce protons, congrader corred during oxidative photophosphorylation
= =




ATP synthesis

Matrix ribosores, circular mitochondrial DNA
aqueous solution,
=




enzymes,

oxidative phosphorylation
->




arnnemerw
attm
large SA cristae=
due to
riboscre ->
hold may ETC proteins ATP
+


synthases



I e


-Aerobic respiration produce =
ATP using 02



=Glycolysis =
plosphorylation
+


glucose splitting, cell cytoplasm

-link reaction:decarboxylation dehydrogenation of pywuate, mitochondrial matrix
+




=Krebs cycle =
cyclical pathway enzyme
+
controlled reaction, mitochondrial matrix



-oxidative phosphorylation produce
= ATP via oxidation of Haloms, inner membrace


Glycolysis
-



-
traps glue all
in
by plosphorylation split
+



glucose 2
in



=2 (3C) molecules, 2 ATP (net), 2 NADH
pyruvate


=posplocylation =


glucose (6C) -> fructose bisphosphate (6C)(by 2ATP)


=lysis fructose
=

bisphosphate (6C) -> 2 Tp 13C)


=Oxidation:
A removed from each TP +

transfered coenzyme
to NAD -> 2 NADH

=Deplosphorylation plosphates
=
-> 4 ATP via substrate -

linked phosphorylation
->
2Pywral (3C)

-




Link reaction pynuate
m oves
=


across mitochondria double membrace via active transport when O2 is available



-pyrvate oxidised =
acerate +

CO2 (NAD -


MADH)


=combine W/ COA acetyl
=

COA


-COA supplies acely/group
=

krebs
to
cycle

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