, TRANSPORT IN PLANTS
surface area : volume : small plants absorb all the
nutrients they need directly from their environment
,
Large plants don't have a big enough SA to take
in what they need .
So , vascular plants have
&
specialised tissues nutrients
for .transporting water
plants are big so they have a higher metabolic
.
,
substances by direct diffusion
rate So exchanging
would be too slow to meet their metabolic needs
.
So they
,
need transport systems to move substances
to + from als &
Transpiration movement of water molecules +
-
dissolved mineral ions , xylm vessels passive .
Translocation movement of sugars + amnio acids
-
,
phoem vessel Active . .
vascular bundle : vascular +issue =
xylum + phloem
tissue Vascular bundles : Phoem ni provides
&
contains
↑ sections 'drui' uke
meristem - structure
&
E so plant can
cambium
push down
Xyuu
- wito root
O
on the
Inside
to provide Xyreu
additional -
tissue is
Support zO
strongest so
stemt
It's in the
endodermis
=
centre
=
veni
& auer Of
: meristen als
your
here that forms
on top of O
phloem zie pericyclic
S
S
only apples
to
dicotyledonous plants
surface area : volume : small plants absorb all the
nutrients they need directly from their environment
,
Large plants don't have a big enough SA to take
in what they need .
So , vascular plants have
&
specialised tissues nutrients
for .transporting water
plants are big so they have a higher metabolic
.
,
substances by direct diffusion
rate So exchanging
would be too slow to meet their metabolic needs
.
So they
,
need transport systems to move substances
to + from als &
Transpiration movement of water molecules +
-
dissolved mineral ions , xylm vessels passive .
Translocation movement of sugars + amnio acids
-
,
phoem vessel Active . .
vascular bundle : vascular +issue =
xylum + phloem
tissue Vascular bundles : Phoem ni provides
&
contains
↑ sections 'drui' uke
meristem - structure
&
E so plant can
cambium
push down
Xyuu
- wito root
O
on the
Inside
to provide Xyreu
additional -
tissue is
Support zO
strongest so
stemt
It's in the
endodermis
=
centre
=
veni
& auer Of
: meristen als
your
here that forms
on top of O
phloem zie pericyclic
S
S
only apples
to
dicotyledonous plants
