Unformatted text preview: and predict the direction of water movement based on differences in solute concentrations o Distinguish among hypertonic, hypotonic, and isotonic solutions • Explain the mechanism by which substances are moved across membranes against a concentration gradient by active transport • Explain how material can be imported into or exported from a cell by being wrapped in membranes 4.3 How are cell surfaces specialized? • Name the intercellular junctions and communication structures found in plant and animal cells and list the function of each type • Describe the basic structure of a plant cell wall...
View Full Document
- Fall '08
- Biology, Cell membrane structure