TRANSPORTATION
Summary
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Transport ( Diffusion)
a.
Simple Diffusion
lfluid
Help
No
:
No
;
energy
help
Solute Requirement : Small
•
Net Movement
•
Special
of
non
-
of solute :[high ]
condition ①
Direction
;
i.
charged
→
•
flow ]
water movement :
high 4 [ low ]
→
low 4[
:
niglycolipid only appears
on the
external side
outside)
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Net Movement
a.
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peripheral protein
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→
transmembrane protein
( cytoplasm / cytosol)
.
need help
of Solute :[ how ] thigh?
→
pump/carrier
outsi-%FF.LI
Osmosis (diffusion of water)
solute cannot diffuse thru
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,
Transport
② Active
•
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hydrophilic>
.
•
ofpnospnolid bilayer)
mosaic model
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① Passive
waste
→
product
high ?
•
•
inside
membrane
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nutrient
protein
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•
•
a
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.
.
hypertonic
solute [ outside ]
4
isotonic
> [ inside ]
solute Eoutside ]
[ outside]< [ inside]
net flow water
:
outward
4
net flow water
inside ]
4
.
( shrinking
no
of cell)
cytosis
-
net flow water
none
inward
:
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turgid
breaking
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( swelling )
plant cell cell wall protection
:
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Special
←
a
→
a
Help
:
No
*
special
→
Diffusion
energy
Need
;
:
big
Phago larger
receptor-mediated endocytosis
cell
on
substrate
surface
to
*'
*⇐•
receptors
*,
[ concentration
Contractile
vacate lprotista
molecule
sensitive]
→
regulate
water
,
charged
changing 4)
.
Overall movement
of fluid
iii. :
.
Communication
Quorum
a.
Regulate
cell
on
density
closer to A.
higher
[ chemical
signal]
a. ion
.
to
-
!
.
.
.
detect space / resources /
channel
motility / reproduction
Transduction /cascade effect)
highly regulated
c.
*
⑧µ
outside
inside
signals
through gap junction
Tt
g.
receptor
*•
tunnel)
Receptor Tyrosine kinase
%
*
✓
Transfer ahem
CAMP
[ 2nd messenger]
&
v
ii.
long-distance
flong
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~ :
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÷§÷ ;÷ ÷j ÷÷÷÷
-
A- P P
-
-
cell process /
② Intracellular
response
ligands
AXON
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←
receptor
=
small ; non-polar
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.
*
cycloid
7
enzymes
Emei
'
synapse
CAMP
(
2nd messenger)
*me.
Receptors
( e. g. NO ; hormone )
t
fun
;)
agree µ.•q
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ligand list messenger)
?⃝
local
?⃝
?⃝
signaling
i.
'
CRTKS )
ligand
B⑥op_B⑨qÉ
CAMRYN response / process
A-p p p
b. G- protein coupled Receptor ( GPCR)
cell
•
→
-
eg.tieartmu.de
c.
Response
specific
&
receptor
•
Contact
>
receptors
ligand list messenger )
.
b. Direct
>
gene regulations
① membrane
.
-
replication based
.
stages of signaling
signal reception
:
!
ii.
-
3
Sensing
bindings
transport protein
channel protein: Aquaporin ( * not
Solute Requirement
•
C.
small molecules
Exocytosis Espitout?
Ii)
blood vessel
b. Facilitated
•
Exchange
:
-
protein
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-
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.
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condition countercurrent
Pino
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-
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.÷~
change
{
Endocytosis [take in ?
i)
[ outside] > [ inside]
'
Plasmolysis
b.
hypotonic
solute [ outside ]< [ inside ]
[ outside]=[ inside]
.
?⃝
?⃝
Membrane
Plasma
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