Active Transport

Key Questions

• How do sodium-potassium pumps support the efficient functioning of cells?

  Answer:

  Let's consider some neurons!

  Explanation:

  When nothing happens (no stimulus), potassium ions and sodium ions diffuse in accordance with a concentration gradient. They use some (there aren't many open) ion channels.

  The role of pumps is to put them back. Otherwise neuron would lose it's ability to transfer the impuls.

  Mc'Coob · 1 · Jan 28 2016

• How do sodium-potassium pumps support the efficient functioning of cells?
• Why is the sodium potassium pump an example of active transport?
• What is the energy source for active transport in cells?
• What is the difference between active and inactive transport in cells? What are some examples of each?
• What molecules require active transport across cell membranes?
• What is an example of active transport that occurs in a plant?
• Why does active transport need energy? Where does this energy come from?
• Why does active transport occur in cells?
• What do amoebas use for movement?
• Calculate the work required to transfer 1 mol of K+ from the blood to muscle cells?
• Question #d2597