[GP] Q.7. Types of carrier protein:

• a) Uniport : They transport only 1 substance.
• b) Symport(co transport) : Movement of two substances in same direction across membrane by carrier protein( example: Na+ glucose co transport, Na+ amino acid co transport.)
• c) Antiport(counter transport) : Movement of two substances in opposite direction across membrane by carrier protein( example :  Na⁺-K⁺ pump, Na⁺-H⁺ pump)