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Q.
The given diagram shows transport method of two molecules A and B together. Identify I, II and III and choose the correct option.
Transport in Plants
Solution:
In the given diagrams, I is uniport, II is antiport and III is symport.
• Uniport occurs when a molecule moves across a membrane independent of other molecules.
• Antiport occurs when the two types of molecules move in opposite directions.
• Symport occurs when the two types of molecules cross the membrane in same direction.
