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Plant transport full summary notes

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These notes helped me get into medical school, I completed my a levels at Guildford high school which consistently ranks among the top schools in the UK and is known for their academic rigour. I made these notes as a summary of the power points that we were taught off of.

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  • August 25, 2024
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Plant transport

B! one
root hair cell




*
·
W



O Stalls
Translocation ·

G
2
L
is the

-
Cy
G ·




-- 2
00 0

~
S
transport of dissolved sucrose
er
-
S ~

·↳O
N ·
V
to avow
-
S
and amino acids
. At the sink for latteral moument
- to avoid
of water
obsticles such as
cells , sucrose is either
air bubbles
Plasmodesmata
converted to glucose(resp) or > Evidence
specialised epidermal Water moves down Y grad
. Water moves up the xylem
cells

starch (storage) . Phloem is


-
with a
high SA
.
Cytoplasm by osmosis :
by the cohesion-tension
theory -
= water does not leak
also used to transport
·




esap have many solutes to ↳ Water evaporates , it in leaf
Apoplast pathway moves through out as it would if pushed
inorganic ions
.
by root pressure
Lots the cell walls and to adjacent osmosis into mesophyll cells
↓ ↓ to maintain
gradient .




When transpiration rate is

ofMitochondrea to provide cells via .↳ more water drawn up
intercellular spaces
by
greatest ,
there is the
highest
It
#
ATP for A T of mineral ions
. .
symplast pathway moves transpiration pull as water
tension in the Xylem and the

to each
through the cytoplasm and molecules are cohesive
diameter is drawn in At .

night ,
after being ringed
,

between cells via pathways other it is also
,
drawn by more water cannot
transpiration is lower and
be drawn above the
Theories suggest movement down a pressure gradient . called plasmodesmata capillary action e pushed
diameter greater it will die




n
is
ring so
.




by root pressure

V

Adhesion to walls

·
cohesion to other
,
·
Hand sucrose co-transport into sieve tube elements water molecules




·
sucrose actively pumped into sink cells decreasing theirY
water moves into sink cells creating a low
hydrostatic pressure


leads
Hydrostatic pressure gradient across the phloem

to mass flow of sucrose solution

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