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Summary Photosynthesis OCR biology A level Revision notes
In depth revision notes covering the whole of photosynthesis. The topic is broken down into the individual specification points, shown by the numbers used throughout.
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, 5 27.
PHOTOSYNTHESIS
.
- intercept of
determine
C graph
convert between use ratios
,
↑ work out units fractions to percentages
PHOTOSYNTHESIS
·
light energy used to
produce glucose+ &2
from CO2 + He0
↳ these organic
molecules store
energy in the form
of chemical bonds
·
Animals caust
photosynthesise so they
Obtain the organic
molams they need by
eating autrophs (plants)
↳ they get energy by
digesting these
molecules into smaller These are oxidised
molecules then used # during
~ respiration
as respiratory substrates to release energy
·
photolysis means that the
H2 atoms - electrons (from the waters are
then added to CO2 , reducing it to guicose
↳ glucose can then be oxidised in
respiration , releasing energy for the
Synthesis of ATP
photosynthesis - respiration the products
-
·
of I process are the reactants of the other
S
↳ So
, cycle
they or + CO2 within the
atmosphere
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