question_answer 38)

  Indentify the process occurring in I, II and III    

Answer:

                  I- Uniport In this process, there is movement of a molecule across a membrane, i.e., of other molecules. II.Antiport In this process, there is a movement of two types of molecules in opposite direction. III.Symport In this process, there is a movement of more than one molecule across themembrane in the same direction, at one time.