41.    List and differentiate among the various passive/active mechanisms for transporting material through the plasma membrane; 42.    Define membrane potential and explain the role of sodium/potassium anti-port pump; 43.    Define filtration and describe how it differs from other transport processes; 44.    Define tonicity and explain its importance; 45.    Define isotonic, hypertonic, and hypotonic; and 46.    Describe the cause and effects of hydrostatic and osmotic pressure. The Cytoplasm 47.    List the organelles of a cell, describe their structure, and explain their functions; o    Nucleus, rER, golgi apparatus (body), lysosome, sER, and mitochondrion; 48.    List three proteins that compose the cytoskeleton and describe their functions; and 49.    Give an example of a cell inclusion and explain how inclusions differ from organelles.