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<p>and <a href="page.php?w=amino_acid">amino acid</a>s. Examples of active transport include the uptake of glucose in the intestines in humans and the uptake of mineral ions into <a href="page.php?w=root_hair">root hair</a> cells of plants.</p>

<p><big> History </big></p>
<p>In 1848, the <a href="page.php?w=Germany">German</a> physiologist <a href="page.php?w=Emil_du_Bois-Reymond">Emil du Bois-Reymond</a> suggested the possibility of active transport of substances across membranes.</p>

<p>In 1926, <a href="page.php?w=Dennis_Robert_Hoagland">Dennis Robert Hoagland</a></p><p>
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