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Active transport - Wikipedia, the free encyclopedia (Search Map)
The action of the sodium-potassium pump is an example of primary active transport. ... Secondary active transport involves the use of an electrochemical gradient. ...
Biology4Kids.com: Cell Function: Active Transport (Search Map)
Active transport describes what happens when a cell uses energy to transport something. ... Active transport usually happens across the cell membrane. ...
active transport: Definition from Answers.com (Search Map)
active transport n. The movement of a chemical substance through a gradient of concentration or electrical potential in the direction opposite to
Active transport (Search Map)
Active transport involves the use of proteins that don't just passively facilitate the transport of substances across the cell membrane, but require ...
Active Transport (Search Map)
Active transport is the pumping of molecules. against their ... three specific types of active transport: In this animation, we will be focusing on. three ...
Transport Across Cell Membranes (Search Map)
Direct active transport of the ion establishes a concentration gradient. ... Indirect active transport uses the downhill flow of an ion to pump ...
Active Transport (Search Map)
Active Transport - When cells must move materials in an opposite ... Molecular Transport - Proteins are used to move small molecules such as calcium, potassium, and sodium ions ...
Active Transport (Search Map)
Active transport involves expenditure of metabolic energy to move ions or other solutes across membranes against their electrochemical gradient. ...
Active Transport | World of Biology Summary (Search Map)
Active Transport | World of Biology. Active Transport summary with 1 pages of encyclopedia entries, research information, and more.
Cell Membranes: Active Transport (Search Map)
Description: Active transport is the mediated process of moving molecules and other ... Active transport differs from passive transport in that it utilizes chemical ...