Please enable JavaScript.
Coggle requires JavaScript to display documents.
Transport processes in Plants (Water potential water potential (cells and…
Transport processes in Plants
long distance transport: xylem
water transport through xylem
water movement through xylem and plants as whole
when the stomatal pores open they allow waterloss
stomatal transpiration
cohesion tension theory is widely accepted
properties of water
requires lot of energy to lift as water is heavy
movement of water through xylem
it has cohesive adhesive types
water molecules interact with other water molecules
control of water transport by guard cells
powered by water loss to the atmosphere
carries minerals from upwards roots to shoots
transpiration is more significants
water movement through xylem is influenced
long distance transport: Phloem
#
membrane bound molecular pumps and active transport
cotyledons and endosperm are sources for embryos germinations
nutrients that are moved through phloem is not known yet
they produce sugar exported to the rest of the plants
exact mechanisms by water
leaves are dominant sources in the summer
Water potential
can be heated put under pressure or elevated
chemical potential refers to as water potential
water has free energy
water available in air
water available in water
lakes and rivers have fresh water
variety of forms in water
can be increased in several ways
cells and water movement
cell is turgid and presses against cell wall
have at least few organisms
contains solute that causes osmotic potential
short distance inter cellular transport
transfer cells
they use STM/CC complex
it depends upon the molecular pump
they consist of both conducting cells
materials can be actively transported
motor cellls
petiole attached to lamina and the stems
expel potassium
adjust their water potential and turgidity
guard cells
it has internal pressure
it is based on short distance interval
opening of stomatal spores
they are in hydraulic with the surrounding cels
molecular pumps
molecules are extremely concentrated on the receiving side
use the ATP to force molecules
diffusion osmosis, active transport
diffusion through a membrane is osmosis
it crosses the membrane
selective permeable membrane allows only certain materials
material moves through a solution
Aquaporins
#
membrane has protein channel
Active transport
#
#
#
mechanism connection
functional connection
functional conncetion
