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	<title>All About Knowledge And Knowledge</title>
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	<description>All About Knowledge And Knowledge</description>
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		<title>Active Absorption of Ions (Part Three) and Ionic Uptake by Roots</title>
		<link>http://www.about-knowledge.com/active-absorption-of-ions-part-three-and-ionic-uptake-by-roots/</link>
		<comments>http://www.about-knowledge.com/active-absorption-of-ions-part-three-and-ionic-uptake-by-roots/#comments</comments>
		<pubDate>Tue, 26 May 2009 15:51:31 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1254</guid>
		<description><![CDATA[Active Absorption of Ions (Part Three)
ATPase Mediated Transport
ATPase can also generate proton gradient across the membrane. ATPase helps in hydrolysis of ATP. ATP is broken down into ADP and inorganic phosphate (Pi) with the addition of water. Water is spilt up into H+ and OH-. Then cations are transported activity in exchange for H+ in [...]


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<li><a href='http://www.about-knowledge.com/mechanism-of-ionic-uptake-passive-absorption-of-ions/' rel='bookmark' title='Permanent Link: Mechanism of Ionic Uptake &#8211; Passive Absorption of Ions'>Mechanism of Ionic Uptake &#8211; Passive Absorption of Ions</a> <small>Ions may be taken up by the plant cells by...</small></li>
<li><a href='http://www.about-knowledge.com/composition-of-the-soil-part-two/' rel='bookmark' title='Permanent Link: Composition of the Soil (Part Two)'>Composition of the Soil (Part Two)</a> <small>Clay Minerals and Cation Exchange The clay particles are composed...</small></li>
<li><a href='http://www.about-knowledge.com/active-absorption-of-ions-part-two/' rel='bookmark' title='Permanent Link: Active Absorption of Ions (Part Two)'>Active Absorption of Ions (Part Two)</a> <small>Cytochrome Pump This mechanism of ion transport is based on...</small></li>
<li><a href='http://www.about-knowledge.com/entry-of-water-into-roots/' rel='bookmark' title='Permanent Link: Entry of Water into Roots'>Entry of Water into Roots</a> <small>Water diffuses directly from the soil into the free space...</small></li>
</ol>]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Active Absorption of Ions (Part Two)</title>
		<link>http://www.about-knowledge.com/active-absorption-of-ions-part-two/</link>
		<comments>http://www.about-knowledge.com/active-absorption-of-ions-part-two/#comments</comments>
		<pubDate>Mon, 25 May 2009 13:08:29 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1245</guid>
		<description><![CDATA[Cytochrome Pump
This mechanism of ion transport is based on electrochemical gradient generated by electron transport. How such an electrochemical gradient is produced is explained by chemiosmotic hypothesis put forward by British biochemist P. Mitchel. According to Mitchell&#8217;s hypothesis, when hydrogen is removed from a substrate in respiration and carried along an electron transport chain, it [...]


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<li><a href='http://www.about-knowledge.com/mechanism-of-ionic-uptake-passive-absorption-of-ions/' rel='bookmark' title='Permanent Link: Mechanism of Ionic Uptake &#8211; Passive Absorption of Ions'>Mechanism of Ionic Uptake &#8211; Passive Absorption of Ions</a> <small>Ions may be taken up by the plant cells by...</small></li>
<li><a href='http://www.about-knowledge.com/active-absorption-of-ions-part-three-and-ionic-uptake-by-roots/' rel='bookmark' title='Permanent Link: Active Absorption of Ions (Part Three) and Ionic Uptake by Roots'>Active Absorption of Ions (Part Three) and Ionic Uptake by Roots</a> <small>Active Absorption of Ions (Part Three) ATPase Mediated Transport ATPase...</small></li>
<li><a href='http://www.about-knowledge.com/movement-of-solutes-in-the-cells-and-ion-accumulation-and-selective-uptake-of-ions/' rel='bookmark' title='Permanent Link: Movement of Solutes in the Cells and Ion Accumulation and Selective Uptake of Ions'>Movement of Solutes in the Cells and Ion Accumulation and Selective Uptake of Ions</a> <small>Movement of Solutes in the Cells As pointed out earlier,...</small></li>
<li><a href='http://www.about-knowledge.com/mechanism-of-water-absorption-and-antagonism/' rel='bookmark' title='Permanent Link: Mechanism of Water Absorption and Antagonism'>Mechanism of Water Absorption and Antagonism</a> <small>Mechanism of Water Absorption American physiologists, A. S. Crafts and...</small></li>
</ol>]]></description>
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		</item>
		<item>
		<title>Mechanism of Ionic Uptake &#8211; Active Absorption of Ions (Part One)</title>
		<link>http://www.about-knowledge.com/mechanism-of-ionic-uptake-active-absorption-of-ions-part-one/</link>
		<comments>http://www.about-knowledge.com/mechanism-of-ionic-uptake-active-absorption-of-ions-part-one/#comments</comments>
		<pubDate>Sun, 24 May 2009 11:35:44 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1237</guid>
		<description><![CDATA[Active Absorption of Ions
The active transport of ions into the cells occurs at rates or in quantities which are against the laws of diffusion and electrochemical equilibrium. Such a transport uses energy derived from metabolism of the cell.


Certain experiments suggest the presence of active transport in cells. In one experiment, accumulation of K+ ions was [...]


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<li><a href='http://www.about-knowledge.com/active-absorption-of-ions-part-three-and-ionic-uptake-by-roots/' rel='bookmark' title='Permanent Link: Active Absorption of Ions (Part Three) and Ionic Uptake by Roots'>Active Absorption of Ions (Part Three) and Ionic Uptake by Roots</a> <small>Active Absorption of Ions (Part Three) ATPase Mediated Transport ATPase...</small></li>
<li><a href='http://www.about-knowledge.com/active-absorption-of-ions-part-two/' rel='bookmark' title='Permanent Link: Active Absorption of Ions (Part Two)'>Active Absorption of Ions (Part Two)</a> <small>Cytochrome Pump This mechanism of ion transport is based on...</small></li>
<li><a href='http://www.about-knowledge.com/mechanism-of-water-absorption-and-antagonism/' rel='bookmark' title='Permanent Link: Mechanism of Water Absorption and Antagonism'>Mechanism of Water Absorption and Antagonism</a> <small>Mechanism of Water Absorption American physiologists, A. S. Crafts and...</small></li>
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</ol>]]></description>
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		</item>
		<item>
		<title>Mechanism of Ionic Uptake &#8211; Passive Absorption of Ions</title>
		<link>http://www.about-knowledge.com/mechanism-of-ionic-uptake-passive-absorption-of-ions/</link>
		<comments>http://www.about-knowledge.com/mechanism-of-ionic-uptake-passive-absorption-of-ions/#comments</comments>
		<pubDate>Sat, 23 May 2009 16:34:16 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1230</guid>
		<description><![CDATA[Ions may be taken up by the plant cells by two methods:

Passive Absorption.
Active Absorption.

Passive Absorption of Ions


Absorption of ions by the cells may occur without spending metabolic energy by the process of diffusion but accumulation of large quantities of ions in the cells against concentration gradient shows that it is not merely a process of [...]


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<li><a href='http://www.about-knowledge.com/active-absorption-of-ions-part-three-and-ionic-uptake-by-roots/' rel='bookmark' title='Permanent Link: Active Absorption of Ions (Part Three) and Ionic Uptake by Roots'>Active Absorption of Ions (Part Three) and Ionic Uptake by Roots</a> <small>Active Absorption of Ions (Part Three) ATPase Mediated Transport ATPase...</small></li>
<li><a href='http://www.about-knowledge.com/active-absorption-of-ions-part-two/' rel='bookmark' title='Permanent Link: Active Absorption of Ions (Part Two)'>Active Absorption of Ions (Part Two)</a> <small>Cytochrome Pump This mechanism of ion transport is based on...</small></li>
<li><a href='http://www.about-knowledge.com/mechanism-of-water-absorption-and-antagonism/' rel='bookmark' title='Permanent Link: Mechanism of Water Absorption and Antagonism'>Mechanism of Water Absorption and Antagonism</a> <small>Mechanism of Water Absorption American physiologists, A. S. Crafts and...</small></li>
</ol>]]></description>
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		</item>
		<item>
		<title>Movement of Solutes in the Cells and Ion Accumulation and Selective Uptake of Ions</title>
		<link>http://www.about-knowledge.com/movement-of-solutes-in-the-cells-and-ion-accumulation-and-selective-uptake-of-ions/</link>
		<comments>http://www.about-knowledge.com/movement-of-solutes-in-the-cells-and-ion-accumulation-and-selective-uptake-of-ions/#comments</comments>
		<pubDate>Fri, 22 May 2009 08:30:04 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1223</guid>
		<description><![CDATA[Movement of Solutes in the Cells
As pointed out earlier, the soil solution diffuses freely into the cortical part of the apoplast. The ions present in the solution then move into the symplast. During this transport the ions have to pass through the plasmodesmata also.


The diffusion of ions depends not only on the osmotic or chemical [...]


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<li><a href='http://www.about-knowledge.com/mechanism-of-ionic-uptake-active-absorption-of-ions-part-one/' rel='bookmark' title='Permanent Link: Mechanism of Ionic Uptake &#8211; Active Absorption of Ions (Part One)'>Mechanism of Ionic Uptake &#8211; Active Absorption of Ions (Part One)</a> <small>Active Absorption of Ions The active transport of ions into...</small></li>
<li><a href='http://www.about-knowledge.com/active-absorption-of-ions-part-two/' rel='bookmark' title='Permanent Link: Active Absorption of Ions (Part Two)'>Active Absorption of Ions (Part Two)</a> <small>Cytochrome Pump This mechanism of ion transport is based on...</small></li>
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<li><a href='http://www.about-knowledge.com/mechanism-of-water-absorption-and-antagonism/' rel='bookmark' title='Permanent Link: Mechanism of Water Absorption and Antagonism'>Mechanism of Water Absorption and Antagonism</a> <small>Mechanism of Water Absorption American physiologists, A. S. Crafts and...</small></li>
</ol>]]></description>
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		</item>
		<item>
		<title>Factors Affecting Rate of Water Absorption</title>
		<link>http://www.about-knowledge.com/factors-affecting-rate-of-water-absorption/</link>
		<comments>http://www.about-knowledge.com/factors-affecting-rate-of-water-absorption/#comments</comments>
		<pubDate>Thu, 21 May 2009 18:18:45 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1220</guid>
		<description><![CDATA[The following factors affect the rate of absorption of water by the roots:

Available Soil Water.
Soil Temperature.
Aeration of Soil.
Concentration of the Soil Solution.


Available Soil Water

The part of soil moisture in excess of that present at permanent wilting point is called available water. Between field capacity and permanent wilting point, the absorption goes on fairly well. Below [...]


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<li><a href='http://www.about-knowledge.com/absorption-of-water-and-mineral-salts-by-root/' rel='bookmark' title='Permanent Link: Absorption of Water and Mineral Salts by Root'>Absorption of Water and Mineral Salts by Root</a> <small>Absorption of water and mineral salts takes place through the...</small></li>
<li><a href='http://www.about-knowledge.com/composition-of-the-soil-part-four/' rel='bookmark' title='Permanent Link: Composition of the Soil (Part Four)'>Composition of the Soil (Part Four)</a> <small>Water and Soil Solution Water is the largest component of...</small></li>
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</ol>]]></description>
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		</item>
		<item>
		<title>Mechanism of Water Absorption and Antagonism</title>
		<link>http://www.about-knowledge.com/mechanism-of-water-absorption-and-antagonism/</link>
		<comments>http://www.about-knowledge.com/mechanism-of-water-absorption-and-antagonism/#comments</comments>
		<pubDate>Wed, 20 May 2009 13:37:57 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1217</guid>
		<description><![CDATA[Mechanism of Water Absorption
American physiologists, A. S. Crafts and T. C. Broyer proposed a mechanism of absorption of water by roots based on the apoplast &#8211; symplast concept. They suggested that soil solution, containing ions of salts dissolved in water, diffuses into the cortical apoplast. The ions are absorbed into the symplast by active absorption. [...]


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<li><a href='http://www.about-knowledge.com/absorption-of-water-and-mineral-salts-by-root/' rel='bookmark' title='Permanent Link: Absorption of Water and Mineral Salts by Root'>Absorption of Water and Mineral Salts by Root</a> <small>Absorption of water and mineral salts takes place through the...</small></li>
<li><a href='http://www.about-knowledge.com/factors-affecting-rate-of-water-absorption/' rel='bookmark' title='Permanent Link: Factors Affecting Rate of Water Absorption'>Factors Affecting Rate of Water Absorption</a> <small>The following factors affect the rate of absorption of water...</small></li>
<li><a href='http://www.about-knowledge.com/mechanism-of-ionic-uptake-active-absorption-of-ions-part-one/' rel='bookmark' title='Permanent Link: Mechanism of Ionic Uptake &#8211; Active Absorption of Ions (Part One)'>Mechanism of Ionic Uptake &#8211; Active Absorption of Ions (Part One)</a> <small>Active Absorption of Ions The active transport of ions into...</small></li>
<li><a href='http://www.about-knowledge.com/mechanism-of-ionic-uptake-passive-absorption-of-ions/' rel='bookmark' title='Permanent Link: Mechanism of Ionic Uptake &#8211; Passive Absorption of Ions'>Mechanism of Ionic Uptake &#8211; Passive Absorption of Ions</a> <small>Ions may be taken up by the plant cells by...</small></li>
</ol>]]></description>
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		</item>
		<item>
		<title>Entry of Water into Roots</title>
		<link>http://www.about-knowledge.com/entry-of-water-into-roots/</link>
		<comments>http://www.about-knowledge.com/entry-of-water-into-roots/#comments</comments>
		<pubDate>Tue, 19 May 2009 13:40:58 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1209</guid>
		<description><![CDATA[Water diffuses directly from the soil into the free space of roots. Free space is that part of the root or tissue into which water reaches directly without any barrier. This space can not be measured exactly but its approximate measure is apparent free space (AFS). Its value can be estimated and expressed by the [...]


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<li><a href='http://www.about-knowledge.com/diffusion-of-water/' rel='bookmark' title='Permanent Link: Diffusion of Water'>Diffusion of Water</a> <small>The movement of water within a cell and from one...</small></li>
</ol>]]></description>
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		</item>
		<item>
		<title>Absorption of Water and Mineral Salts by Root</title>
		<link>http://www.about-knowledge.com/absorption-of-water-and-mineral-salts-by-root/</link>
		<comments>http://www.about-knowledge.com/absorption-of-water-and-mineral-salts-by-root/#comments</comments>
		<pubDate>Mon, 18 May 2009 12:48:35 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1205</guid>
		<description><![CDATA[Absorption of water and mineral salts takes place through the much branched root system. A large part of water and mineral nutrients is absorbed by root. Most active absorption however, is known to occur at the root-hair zone, located a little behind the root tip. Root hairs increase the total absorptive area of root.


Dittmer (1937) [...]


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<li><a href='http://www.about-knowledge.com/mechanism-of-ionic-uptake-active-absorption-of-ions-part-one/' rel='bookmark' title='Permanent Link: Mechanism of Ionic Uptake &#8211; Active Absorption of Ions (Part One)'>Mechanism of Ionic Uptake &#8211; Active Absorption of Ions (Part One)</a> <small>Active Absorption of Ions The active transport of ions into...</small></li>
<li><a href='http://www.about-knowledge.com/factors-affecting-rate-of-water-absorption/' rel='bookmark' title='Permanent Link: Factors Affecting Rate of Water Absorption'>Factors Affecting Rate of Water Absorption</a> <small>The following factors affect the rate of absorption of water...</small></li>
<li><a href='http://www.about-knowledge.com/active-absorption-of-ions-part-three-and-ionic-uptake-by-roots/' rel='bookmark' title='Permanent Link: Active Absorption of Ions (Part Three) and Ionic Uptake by Roots'>Active Absorption of Ions (Part Three) and Ionic Uptake by Roots</a> <small>Active Absorption of Ions (Part Three) ATPase Mediated Transport ATPase...</small></li>
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		<title>Composition of the Soil (Part Four)</title>
		<link>http://www.about-knowledge.com/composition-of-the-soil-part-four/</link>
		<comments>http://www.about-knowledge.com/composition-of-the-soil-part-four/#comments</comments>
		<pubDate>Sun, 17 May 2009 13:40:06 +0000</pubDate>
		<dc:creator>Peter</dc:creator>
				<category><![CDATA[Soil and Root Absorption]]></category>

		<guid isPermaLink="false">http://www.about-knowledge.com/?p=1198</guid>
		<description><![CDATA[Water and Soil Solution
Water is the largest component of the soil, next to mineral matter. In the soil water are dissolved many chemical compounds. These are formed from weathering of rock particles, decomposition of organic matter, activities of micro-organisms or reactions between roots of plants and soil constituents. Soil water, therefore, may rightly be spoken [...]


<b>Related posts:</b><ol><li><a href='http://www.about-knowledge.com/composition-of-the-soil-part-one/' rel='bookmark' title='Permanent Link: Composition of the Soil (Part One)'>Composition of the Soil (Part One)</a> <small>Most vascular plants are rooted in the soil from which...</small></li>
<li><a href='http://www.about-knowledge.com/composition-of-the-soil-part-three/' rel='bookmark' title='Permanent Link: Composition of the Soil (Part Three)'>Composition of the Soil (Part Three)</a> <small>Organic Matter The organic matter of the soil is derived...</small></li>
<li><a href='http://www.about-knowledge.com/composition-of-the-soil-part-two/' rel='bookmark' title='Permanent Link: Composition of the Soil (Part Two)'>Composition of the Soil (Part Two)</a> <small>Clay Minerals and Cation Exchange The clay particles are composed...</small></li>
<li><a href='http://www.about-knowledge.com/factors-affecting-rate-of-water-absorption/' rel='bookmark' title='Permanent Link: Factors Affecting Rate of Water Absorption'>Factors Affecting Rate of Water Absorption</a> <small>The following factors affect the rate of absorption of water...</small></li>
<li><a href='http://www.about-knowledge.com/active-absorption-of-ions-part-three-and-ionic-uptake-by-roots/' rel='bookmark' title='Permanent Link: Active Absorption of Ions (Part Three) and Ionic Uptake by Roots'>Active Absorption of Ions (Part Three) and Ionic Uptake by Roots</a> <small>Active Absorption of Ions (Part Three) ATPase Mediated Transport ATPase...</small></li>
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