Active Transport - Physiology - Revision history

Bara at 14:43, 5 July 2012

2012-07-05T14:43:43Z

2010-12-10T13:33:24Z

2010-11-04T19:48:53Z

2010-08-20T12:22:41Z

2010-08-20T12:22:27Z

2008-10-08T07:52:35Z

2008-09-22T20:47:09Z

2008-09-22T20:34:25Z

Example - Sodium

2008-09-22T17:41:13Z

2008-09-07T12:48:10Z

Introduction

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 ==Introduction==
 Active transport is reliant on [[Transport Proteins - Physiology|carrier proteins]] and thus follows the same rules as [[Transport Proteins - Physiology|facilitated diffusion]] in that they are specific have a maximum rate and are subject to competition. Crucially they transport substances against their concentration gradient and so require energy to work.
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 Sometimes secondary active transport transports things in the same direction as the sodium ions.  For example glucose from the intestine and amino acids are transported this way.  In other cases sodium flows into a cell to provide energy to remove other ions such as [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Acid / Base|'''H<sup>+</sup>''']] and [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Calcium|'''Ca<sup>2+</sup>''']]
 [[Category:Transport Across Membranes]]
 [[Category:Electrolytes]]

@@ Line 23: / Line 23: @@
 Sometimes secondary active transport transports things in the same direction as the sodium ions.  For example glucose from the intestine and amino acids are transported this way.  In other cases sodium flows into a cell to provide energy to remove other ions such as [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Acid / Base|'''H<sup>+</sup>''']] and [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Calcium|'''Ca<sup>2+</sup>''']]
-[[Category:Urinary System]]
+[[Category:Transport Across Membranes]]
 [[Category:Electrolytes]]

@@ Line 1: / Line 1: @@
 ==Introduction==
 Active transport is reliant on [[Transport Proteins - Physiology|carrier proteins]] and thus follows the same rules as [[Transport Proteins - Physiology|facilitated diffusion]] in that they are specific have a maximum rate and are subject to competition. Crucially they transport substances against their concentration gradient and so require energy to work.
@@ Line 34: / Line 24: @@
 [[Category:Urinary System]]

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 |sublink1=Transport Across Membranes - Physiology
 |subtext1=TRANSPORT ACROSS MEMBRANES
 }}
 <br>

← Older revision		Revision as of 12:22, 20 August 2010
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	Sometimes secondary active transport transports things in the same direction as the sodium ions. For example glucose from the intestine and amino acids are transported this way. In other cases sodium flows into a cell to provide energy to remove other ions such as [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Acid / Base\|'''H<sup>+</sup>''']] and [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Calcium\|'''Ca<sup>2+</sup>''']]		Sometimes secondary active transport transports things in the same direction as the sodium ions. For example glucose from the intestine and amino acids are transported this way. In other cases sodium flows into a cell to provide energy to remove other ions such as [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Acid / Base\|'''H<sup>+</sup>''']] and [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Calcium\|'''Ca<sup>2+</sup>''']]
		+
		+	[[Category:Urinary System]]

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 {{toplink
-|backcolour = C1F0F6
+|linkpage =Urinary System - Anatomy & Physiology
-|linkpage =Transport Across Membranes - Physiology
+|linktext =URINARY SYSTEM
 |maplink = Urinary System (Content Map) - Anatomy & Physiology
 |pagetype =Anatomy
 }}

← Older revision		Revision as of 20:47, 22 September 2008
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	=====Uses=====		=====Uses=====

−	Sometimes secondary active transport transports things in the same direction as the sodium ions. For example glucose from the intestine and amino acids are transported this way. In other cases sodium flows into a cell to provide energy to remove other ions such as [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Acid / Base\|'''H<sup>+</sup>''']] and [[~~Calcium Recovery~~ - Physiology\|'''Ca<sup>2+</sup>''']]	+	Sometimes secondary active transport transports things in the same direction as the sodium ions. For example glucose from the intestine and amino acids are transported this way. In other cases sodium flows into a cell to provide energy to remove other ions such as [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Acid / Base\|'''H<sup>+</sup>''']] and [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Calcium\|'''Ca<sup>2+</sup>''']]

@@ Line 16: / Line 16: @@
 In primary active transport the main source of energy is ATP.  The ATP is hydrolyzed to ADP by the protein releasing energy which powers the transport.
-=====Example - [[Sodium Homeostasis - Physiology|Sodium]]=====
+=====Example - [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Sodium|Sodium]]=====
 This allows the transport of sodium ions from the inside to the outside of the cell.  This process requires energy as there is a lower concentration within the cell than outside.  However it is essential to maintain the correct internal environment of the cell. The system also has to overcome the electrical gradient involved as the interior of cells is negatively charged thus attracting sodium.

← Older revision		Revision as of 17:41, 22 September 2008
Line 30:		Line 30:
	=====Uses=====		=====Uses=====

−	Sometimes secondary active transport transports things in the same direction as the sodium ions. For example glucose from the intestine and amino acids are transported this way. In other cases sodium flows into a cell to provide energy to remove other ions such as [[~~Acid Base~~ Balance ~~By The Kidney~~ - Anatomy & Physiology\|'''H<sup>+</sup>''']] and [[Calcium Recovery - Physiology\|'''Ca<sup>2+</sup>''']]	+	Sometimes secondary active transport transports things in the same direction as the sodium ions. For example glucose from the intestine and amino acids are transported this way. In other cases sodium flows into a cell to provide energy to remove other ions such as [[Essential Ion and Compound Balance and Homeostasis - Anatomy & Physiology#Acid / Base\|'''H<sup>+</sup>''']] and [[Calcium Recovery - Physiology\|'''Ca<sup>2+</sup>''']]