The sodium/potassium pump is a good example of active transport of molecules across a membrane. In this example, active transport is coupled to ATP hydrolysis to obtain enough free energy to transport the ions against their concentration gradient.
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Chemistry 420 - Principles of Biochemistry...
www.nd.edu/~aseriann/nak.html
The mechanism responsible for this is the sodium-potassium pump which moves these two ions in opposite ...
en.wikipedia.org/wiki/Na%2B/K%2B-ATPase
Insulin is a major regulator of potassium homeostasis and has multiple effects on sodium pump activity. Within minutes of elevated insulin secretion, pumps containing alpha-1 and 2 isoforms have increased affinity for sodium and increased turnover rate.
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The Na+/K+ pump is found in the membranes of many types of cells. In particular, it plays a very important role in nerve cell membranes. Notice that 3 positive ions (Na+) are pumped out of the cell (towards ECF) for every 2 positive ions (K+) pumped into the cell (towards ICF).
www.zerobio.com/central/na_k.htm
Na+/K+-ATPase - Wikipedia, the free encyclopedia
Na + /K + -ATPase (also known as the Na + /K + pump , sodium-potassium pump , or simply sodium pump , for short) is an enzyme (EC 3.6.3.9) located in the plasma membrane (specifically a...
en.wikipedia.org/wiki/Na+/K+-ATPase
Mechanism of the Na+/K+ Pump ... The Na/K pump is an active transport system. The energy for the active transport comes from the ATP molecule which is used to phosphorylate the transporter. Thus, to function, this pump requires a continuous source of ATP.
bio.winona.edu/berg/ANIMTNS/NaKpump2.htm bio.winona.edu/berg/ANIMTNS/NaKpump2.htm
On-Line Biology Book: GLOSSARY ... sodium-potassium pump The mechanism that uses energy to reset the sodium and potassium ions after transmission of a nerve impulse.
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The sodium-potassium pump is an active transport mechanism. ... 1 The sodium-potassium pump functions to pump ... What is the source of energy used to power the sodium-potassium pump?
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