Biology, Eighth Edition (Raven)

Chapter 5: Membranes

Learning Outcomes

• Understand the biochemistry of phospholipids and how they are organized into membranes.
• Know the function of each of the four components of a cell membrane.
• Differentiate among diffusion, facilitated transport, facilitated diffusion, osmosis, and active transport.
• Describe the six classes of membrane proteins and how each interacts with the membrane.
• Describe solution and solute movement into and out of a cell under hyperosmotic, hypoosmotic, or isosmotic conditions.
• Explain and give examples of endocytosis, phagocytosis, pinocytosis, receptor-mediated endocytosis, and exocytosis.
• Understand the importance of selective permeability in biological systems.
• Describe the operation of the sodium potassium pump and the proton pump.
• Understand the importance of coupled channels, cotransport, and countertransport.