Cellular Physiology Lec. 4
Dr. Basim A. Al-Ka’abi
MBChB (Medicine)
MSc, PhD (Medical Physiology)
Primary active transport:
• “Uphill”
• Energy, ATP
• Examples
Secondary active transport:
• Coupling two or more solutes
• Na
+
(downhill), the other (uphill)
• Effect of inhibiting Na
+
/K
+
ATPase
• Co-transport (symport)
• Counter-transport (antiport)
Osmosis:
• Meaning
• Effect of solute concentration on osmotic pressure
• “Osmolarity”
Isotonic, hyper and hypotonic fluids:
• Meaning
• Effect on cells
Edema:
• Definition
• Intracellular vs extracellular edemas
• Most common one
Edema (cont’d):
• Extracellular edema:
• Excessive capillary filtration, causes
• Failure of lymphatics, causes
Good Luck