Active Transport Flashcards
Transporter protein can mediate what?
Active transport of hydrophilic substances across the membrane.
What can’t channel proteins mediate?
Active Transport
Active transports, allows for movement?
Against the concentration gradient
What does active transport require?
Energy generated when ATP is converted to ADP
What is an electrogenic pump?
a transporter that generates a voltage across the membrane
What is an example of an electrogenic pump?
Sodium Potassium ATPase, which transports 3 Na+ out and 2K+ in
What is primary active transport?
transport that uses energy directly from ATP, e.g. Na+/K+-ATPase
What is secondary active transport/ cotransport?
coupling of one solute against its concentration gradient with transport of another solute along its electrochemical gradient.
How does secondary active transport work?
uses energy stored in the concentration gradient of ions across the membrane.
Example of secondary active transport?
Na+ glucose cotransporter
Active transports moves solutes?
against there concentration gradient
Active Transport is only mediated by?
Transporter proteins
