Lecture notes
Enzyme introduction
- Module
- Medicine
- Institution
- Queens University Belfast (QUB)
Lecture notes of 8 pages for the course Medicine at QUB (Physiology)
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CATABOLIC AND ANABOLIC REACTIONSEnergyreleased by
catabolicreactionused
topoweranabolic
reaction transported
by f
large a q
small
large
small
Carrier molecules are betweens that link the
go
breakdown of food molecules and the release of
energy catabolism to the
energy requiring bio
synthesis of smalland
large molecules anabolism
Oxidation Removal of E addition of oxygen
Reduction Addition of e loss of
oxygen
In oxidation reduction reactions one chemical
in oxidised passed on to another Creduced
and it e
chemical Such coupled reactions are redox reactions
The process of
Gly coup in Kress's cycle and e
transport phosphorylation involve Redox
C N 24 MES
Enzymes are
biological catalysts when applied
it lowers the activation energy Substrate product
, their influence
They exert
catalytic by forming
a complex with the substrate
lowering the activation
unaltered
energy The enzyme remains They are
reactions
v specific and
normally catalyse one
type of
COUPLED REACTIONS A coupled reaction
y vi where two reactions
Enzymes occur
together One
create biological endo reaction is necessary
energy
order used
for the other to occur
by using exo
energy
released
coupled 1 e it drives
reactions
energetically
unfavourable
reactions
METABOLISM
Catabolictanabolic reactions together castiturea
cell's metabolism
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