Download What is passive absorption?

Chapter nine
Plant Physiology
Different types of inorganic salt
Do you know how can Plants absorbed this?
Plants absorbed this by a special process
Metabolic energy is not required in this process
Inactive absorption of mineral salt
 define the inactive absorption
 described the different methods of inactive
absorption process
 compare between active & inactive
absorption.
Passive Absorption
Metabolic energy is not required in this process
Different methods of passive absorption
Diffusion method Ion exchange method
Donan equilibrium
Mass flow
Diffusion method
 Particular ion of the soil is higher than cell sap concentration.
 Ion from the soil will enter into cell through diffusion process.
Ion exchange
Different types of ions exchanges inside to outside the cell.
K+
H+
ClOH-
Donan equilibrium
 Scientist F.G. Donnan (1927) forward this theory.
To neutralize some non-diffusible negatively charged ion
inside the cell membrane , some positively charged cation
enters inside the cell membrane automatically.
Mass flow
When the transpiration force occurs then mineral
salt absorbed along with water. Scientist Hylmo &
Kramen refer this.
Individual Work:
Make a list of essential salt of plants
Difference between active & passive absorption process
subject
 Metabolic
force
 Carrier ion
 Respiration
rate
 absorb
Cation &
anions
 Enzyme
Active absorption
Passive absorption
Make a list of different absorption process
 What is passive absorption?
 What is called the process where positive ions entered to
neutralized the negative ions? Who regards this?
 What is the main different between active & passive absorption
process?