Post on 08-Jun-2020
Transport across Plasma
Membranes
Osmosis
Osmotic pressure
Van’t Hoff’s Law
π = RTC
π : osmotic Pressure
R = Gas constant
T = Absolute Temprature
C = Concentration
Filtration
Distribution of Water in Human
Body
Distribution of Ions in Body
Fluids
• Concentration: Molar vs Equivalent
concentration
• Osmotic pressure (mmHg)
• Colloid-osmotic pressure
• Hydrostatic pressure
• Osmolarity:
• Osmolality:
• Tonicity
Measurement Units
Tonicity of solution
Active Transport Mechanisms
• Primary active transport
• Secondary active transport
• Vesicular transport
Types of Pumps
• Na+/K+ pump
• H+ pump
• H+/K+ pump
• Ca++ pump
Phosphorylation &
dephosphorylation
Types of Pumps
• Na+/K+ pump
• H+ pump
• H+/K+ pump
• Ca++ pump
The importance of pumps for
cell functions