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Page 1

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AS Unit F211: Cells, exchange and transport

Module 1 Cells
Done
Cell structure

St
ate
the
resol
uti
on and
ma gni
fi
cati
on
that
can
be
achieved
by
a l
i
g ht
mi
croscope,
a
t
ransmi
ssion
elect
ron
microscope
and
a scanni
ng
elect
ron…

Page 2

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Expl
ain
what
i
s meant
by
passive transport (
dif
fus i
on
a nd f
a ci
l
it
ated di
ff
u si
o n incl
udi
ng
t
he r
ole
of
memb r
ane
prot
e i
ns),
active transport,
endocytosis
and exocytosis.
Expl
ain…

Page 3

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Descri
be
the
feat
ures
of
an
eff
ici
ent
exchange
sur
face,
wi
th
ref
erence
to
dif
fusi
on
of
oxygen
and
carbon
dioxi
de
across
an al
veol
us.
Descri
be
the
feat
ures
of
the
mammal
ian
lung
that
adapt
i
t
to
eff
ici
ent…

Page 4

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Descri
be
and
expl
ain
the
signi
fi
cance
of
the
dis
sociat
ion
curves
of
adul
t
oxyhaemogl
obi
n at
di
ff
erent
car
bon di
oxi
de l
evels
(t
he Bohr
ef
fect)
.
Expl
ain
the
signi
fi
cance
of
the
dif
fer
ent
af…

Page 5

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AS Unit F212: Molecules, biodiversity, food and health

Module 1 Biological molecules
Done
Biological molecules

Descr
ibe
how hydr
ogen bondi
ng occur
s bet
ween water
molecul
es,
and
rel
ate
thi
s and
ot
her
proper
ti
es
of wat
er
to
the
rol
es of
water
i…

Page 6

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Descr
ibe
how t
he
concent
rat
ion
of
glucose
in
a sol
uti
on
may
be
det
ermi
ned
usi
ng
col
ori
metr
y.
Done
Nucleic acids

St
ate
that
deoxyr
ibonucl
eic
acid
(DNA )
i
s
a pol
ynucl
eot
ide,
usual
ly
doubl
e st…

Page 7

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Page 8

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Module 2 Food and health
Done
Diet and food production

Def
ine
the
ter
m balanced diet.
Expl
ain
how consumpti
on
of
an
unbal
anced
diet
can
lead
to
mal
nut
ri
ti
on,
wi
th
r
efer
ence t
o obesi
ty.
Di
scuss
the
possi
ble
li…

Page 9

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Compar
e and
cont
rast
t
he
pri
mar
y and
secondar
y i
mmune
responses.
Compar
e and
cont
rast
act
ive,
passi
ve,
nat
ural
and
art
if
ic
ial
i
mmuni
ty.
Expl
ain
how v
a c
cinat
ion
can
cont
rol
di
sease.
Di
scuss…

Page 10

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Module 3 Biodiversity and evolution
Done
Biodiversity

Def
ine
the
ter
ms
species,
habitat
and
biodiversity.
Expl
ain
how bi
odi
ver
sit
y may
be
consi
der
ed
at
dif
fer
ent
l
evel
s
habi
tat
,
speci
es
and
genet
ic.
Expl
ain
the
impor
tance
of…

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