Carrier Mediated Transport

Question 1

What is carrier-mediated transport?

Answer 1

Specific and saturable transport using carrier proteins.

Question 2

What are the types of carrier-mediated transport?

Answer 2

1. Facilitated diffusion (passive)
2. Primary active transport (e.g., Na⁺/K⁺ pump)
3. Secondary active transport: uses gradient created by primary transport (e.g., glucose-Na⁺ co-transport)