Question:
Define Uniport, Symport and Antiport. Do they require energy?
Solution:
1. Uniport: When a single substance moves in a single direction across a cell membrane, it is called uniport.
2. Antiport: When two substances move in the opposite direction across a cell membrane, it is called antiport.
3. Symport: When two substances move in the same direction across a cell membrane, it is called symport
They do not need energy directly.