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Page 1

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Cel
ls

All
an i
ma l
s
and plan t
s are ma de up of
cell
s.
They al
l
co ntai
n :
nucleus,
cytopl
asm,
cell
me mb r
an e,

mit
o c h ondri
a and ri
b oso me s.
Yo u
h…

Page 2

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Guard cell Thi
s i
s where
the
oxygen goes
out
and t
he carbon
dioxi
de
goes
in.
They
are on
the
bott
om of
the
leaf
as
it
i
s sensi
ti
ve
to
sunl
ight
and
if
i
t
is
under
the
leaf
t
here
is
less…

Page 3

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Enzymes

E n zyme s a r
e bi
o logi
cal
catalyst
s,
thi
s me ans
that
they speed up a r
eacti
o n
w i
thout
cha ngi
ng. They
a r
e
ma de of
struct
ur es
o f
pr
oteins.

A c ti…

Page 4

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Byproducts are cleared away




Di
gest
ion
Wh en
food i
s bei
ng chew ed,
t
h e
food
g et
s br
o ken
d own sl
ow l
y and sal
iva
softens
the good and
a n
enzyme
i
s r
eleased cal
led
amy l…

Page 5

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Respi
rat
ion
Respi
rat
ion
is
the
gas
exchange
in
cel
ls.


Respi
rat
ion
is
a chemi
cal
react
ion
in
the
mit
ochondri
a t
o make
energy
other
w i
se
you
w oul
dn'
t
sur
vive.

Mit
ochondri
a ar
e a
speci
ali…

Page 6

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Part
icl
es ar
ri
ve
>
oxygen
(f
rom
the
lungs)
and
glucose
(comes
fr
om
food sugar
and



car
boh ydr
ates
















The
smal
l
int
est
ines
tr
anspor
t
subst
ances
by
act
ive
tr
anspor
t/
dif
fusi
on.


Aer
obi
c
respi
rat
ion…

Page 7

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Phot
osynt
hesi
s
Th e equati
on
for
ph otosynthesis i
s:


C arbon dioxi
de + wa t
e r
>












Glucose
+ oxygen


















(Sunlight, chlorophyll)


Wh at
do pl
a nt
s use glucose
for?

* Energy
for grow t
h
* Repair
ing ce l
ls…

Page 8

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Fact
ors
li
mit
i
n g
phot
osynt
hesi
s


































Page 9

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Nutrients needed for healthy growth:

Mineral What does it do? What happens if it becomes
deficient?
Nitrogen Makes
amino aci
ds f
or gr
ow t
h Poo r
g r
ow t
h .
and
repai
r.

Potassium So
enzyme s
can work Yellow
leav es
and dead
spots.…

Page 10

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Except
f
or
ident
ical
t
w i
ns,
each
person'
s DNA
is
unique.
Thi
s i
s why peopl
e can
be i
denti
fi
ed usi
ng
D NA
f
i
n ger
pri
nti
ng.
D NA can
be cut
up
and separ
ated,
for
ming…

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