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< Question 6 of 14 > O Macmillan Learning A section of membrane with an aquaporin (AQP) has a water transport rate of about 3 billion water molecules per second 3 x 10 molecules-s-¹). Removal of the AQP lowers the rate to about 40 million water molecules per second ( 4.0 x 107 molecules-s-¹). By what factor does the aquaporin increase the rate of water transport in this example? Note that this is a hypothetical situation, and does not reference any specific data or study. However, 3 x 10° molecules/s is a common estimate given for flow through an AQP. Water flow through an AQP is often stated in terms of a water permeability coefficient with units of centimeters per second. The actual value varies with osmotic pressure and type of AQP, among other factors. Some studies have shown around a 10-fold decrease in water permeability after AQP removal. factor increase:

< Question 6 of 14 > O Macmillan Learning A section of membrane with an aquaporin (AQP) has a water transport rate of about 3 billion water molecules per second 3 x 10 molecules-s-¹). Removal of the AQP lowers the rate to about 40 million water molecules per second ( 4.0 x 107 molecules-s-¹). By what factor does the aquaporin increase the rate of water transport in this example? Note that this is a hypothetical situation, and does not reference any specific data or study. However, 3 x 10° molecules/s is a common estimate given for flow through an AQP. Water flow through an AQP is often stated in terms of a water permeability coefficient with units of centimeters per second. The actual value varies with osmotic pressure and type of AQP, among other factors. Some studies have shown around a 10-fold decrease in water permeability after AQP removal. factor increase:

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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**Transcription:** A section of membrane with an aquaporin (AQP) has a water transport rate of about 3 billion water molecules per second (3 x 10⁹ molecules∙s⁻¹). Removal of the AQP lowers the rate to about 40 million water molecules per second (4.0 x 10⁷ molecules∙s⁻¹). By what factor does the aquaporin increase the rate of water transport in this example? Note that this is a hypothetical situation, and does not reference any specific data or study. However, 3 x 10⁹ molecules/s is a common estimate given for flow through an AQP. Water flow through an AQP is often stated in terms of a water permeability coefficient with units of centimeters per second. The actual value varies with osmotic pressure and type of AQP, among other factors. Some studies have shown around a 10-fold decrease in water permeability after AQP removal. **factor increase: ___________________**
Transcribed Image Text:**Transcription:** A section of membrane with an aquaporin (AQP) has a water transport rate of about 3 billion water molecules per second (3 x 10⁹ molecules∙s⁻¹). Removal of the AQP lowers the rate to about 40 million water molecules per second (4.0 x 10⁷ molecules∙s⁻¹). By what factor does the aquaporin increase the rate of water transport in this example? Note that this is a hypothetical situation, and does not reference any specific data or study. However, 3 x 10⁹ molecules/s is a common estimate given for flow through an AQP. Water flow through an AQP is often stated in terms of a water permeability coefficient with units of centimeters per second. The actual value varies with osmotic pressure and type of AQP, among other factors. Some studies have shown around a 10-fold decrease in water permeability after AQP removal. **factor increase: ___________________**
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