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Compar e al For the toolba

Compar e al For the toolba

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Comparison of Symport and Antiport Mechanisms** **Instruction:** Compare and contrast symport and antiport. Which term best describes the transport system mediated by the Na⁺/K⁺ ATPase? --- **Details:** - **Symport and Antiport** are two types of coupled transport mechanisms involving the movement of molecules across biological membranes. - **Symport:** - Involves the simultaneous movement of two molecules in the same direction across the membrane. - Often utilizes a gradient of one molecule to drive the movement of another molecule against its gradient. - **Antiport:** - Involves the simultaneous movement of two molecules in opposite directions. - Also uses the gradient of one molecule to facilitate the movement of another molecule in the reverse direction. - **Na⁺/K⁺ ATPase Transport System:** - The Na⁺/K⁺ ATPase is best described as an antiport system. - It actively transports Na⁺ out of the cell and K⁺ into the cell, both against their concentration gradients, using energy from ATP hydrolysis.
Transcribed Image Text:**Comparison of Symport and Antiport Mechanisms** **Instruction:** Compare and contrast symport and antiport. Which term best describes the transport system mediated by the Na⁺/K⁺ ATPase? --- **Details:** - **Symport and Antiport** are two types of coupled transport mechanisms involving the movement of molecules across biological membranes. - **Symport:** - Involves the simultaneous movement of two molecules in the same direction across the membrane. - Often utilizes a gradient of one molecule to drive the movement of another molecule against its gradient. - **Antiport:** - Involves the simultaneous movement of two molecules in opposite directions. - Also uses the gradient of one molecule to facilitate the movement of another molecule in the reverse direction. - **Na⁺/K⁺ ATPase Transport System:** - The Na⁺/K⁺ ATPase is best described as an antiport system. - It actively transports Na⁺ out of the cell and K⁺ into the cell, both against their concentration gradients, using energy from ATP hydrolysis.
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