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- Define Langerhans cellDescribe the structural characteristics of cells that are highly specialized todo the following: (a) synthesize and secrete proteins, (b) actively transportsubstances into the cell, (c) synthesize lipids, and (d) phagocytize foreignsubstances.Explain the mechanism by which cells sample extracellular fluid.
- Identify and explain the process by which cells expel materialsin bulkbObservation shows that most cells are suspended ininterphase for most of their lives. Identify the parts ofinterphase, and describe an event that occurs during eachpart.Explain the principle involved in the separation scheme for the subcellular components.