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T01.html
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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
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<body id="myDiv" >
<div id="dropb" class="dropdown" >
<button id="dropDownTopic" type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown">
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<div style="background-color:rgb(211, 211, 211);" class="dropdown-menu">
<a class="dropdown-item" style="background-color: rgb(211, 211, 211); " href="#one">Meristematic tissue</a>
<a style="background-color: rgb(211, 211, 211);"class="dropdown-item" href="#two">Apical meristems</a>
<a style="background-color: rgb(211, 211, 211);" class="dropdown-item" href="#three">Intercalary meristems</a>
<a style="background-color: rgb(211, 211, 211);" class="dropdown-item" href="#four">Lateral meristems</a>
<a style="background-color: rgb(211, 211, 211);"class="dropdown-item" href="#five">Permanent tissues</a>
<a style="background-color: rgb(211, 211, 211);" class="dropdown-item" href="#six">Simple permanent</a>
<a style="background-color: rgb(211, 211, 211);" class="dropdown-item" href="#seven">Parenchyma</a>
<a style="background-color: rgb(211, 211, 211);" class="dropdown-item" href="#eight">collenchyma </a>
<a style="background-color: rgb(211, 211, 211);" class="dropdown-item" href="#nine">Sclerenchyma </a>
</div>
</div>
<div>
<center> <h1>1.1 Plant tissues.</h1></center>
<img src="MagicBallImage1.png" alt="Girl in a jacket" >
<center> <p id="one" ><u>Meristematic tissue</u></p></center>
<ul>
<li> The tissues with cells that divide actively by mitosis to produce new cells are called meristematic tissues.</li>
<li>These cells are not differentiated.</li>
<li>The growth of plants takes place due to the activity of meristematic tissues.</li>
<li>This tissue consists of small-sized living cells</li>
<li>No intercellular spaces or intercellular spaces are not prominent</li>
<li>There is a distinct nucleus in each cell</li>
<li>Absence of large central vacuole but small vacuoles may be present</li>
<li>A large number of mitochondria are present</li>
<li> There are 3 types</li></ul>
<ul> <ol>
<li>Apical meristems</li>
<li> Intercalary meristems.</li>
<li> Lateral meristems.</li>
</ol> </ul>
<br>
<center> <p id="two" ><u>Apical meristems</u></p></center>
<ul>
<li>Apical meristems are found in</li>
<ul> <ol>
<li>Shoot apex.</li>
<li>Root apex.</li>
<li>Axillary buds.</li>
</ol> </ul>
<li>The plant increases its height due to the activity of this tissue </li>
<br> </ul>
<center><p id="three"><u>Intercalary meristems</u></p></center> <ul>
<li>Intercalary meristems are found at nodes.</li>
<li>This tissue consists of small-sized living cells</li>
<li>The length of the internode increases due to the activity of the above tissue.</li>
<li>There is a distinct nucleus in each cell</li>
<li>They are found in plants of the grass family</li>
<br>
</ul> <center> <p id="four"><u>Lateral meristems</u></p></center> <ul>
<li> Lateral meristems are present laterally in the stem and roots of a plant.</li>
<li> They are found parallel to the longitudinal axis of the plant.</li>
<li>The diameter of the plant increases due to the activity of this tissue.</li>
<li>Cambium tissue found in dicots is a lateral meristematic tissue.</li>
<br>
</ul> <center> <p id="five"><u>Permanent tissues</u></p></center> <ul>
</ul>
<img src="backGround.jpg" alt="Girl in a jacket">
<ul>
<br>
</ul> <center> <p id="six"><u>Simple permanent</u></p></center> <ul>
<li>The simple permanent tissue is composed of similar cells.</li>
<li>There are 3 types</li>
<ul> <ol>
<li>parenchyma</li>
<li>Sclerenchyma</li>
<li>Collenchyma</li>
</ol> </ul>
<br>
</ul> <center> <p id="seven"><u>Parenchyma</u></p></center> <ul>
<li>The tissue that forms the soft parts of the plant body is the parenchyma tissue.</li>
<li>Parenchyma tissue consists of living cells.</li>
<li>Cells are isodiametric (spherical) with a large central vacuole</li>
<li>The nucleus is present peripherally in the cytoplasm</li>
<li>The cell wall is thin and made up of cellulose.</li>
<li> Intercellular spaces are present.</li>
<li>Locations of parenchyma tissues</li>
<ul> <ol>
<li>Cortex and pith of the plantstem.</li>
<li>Pith and.corter of roots</li>
<li>Fleshy Parts of fruits</li>
<li> Seeds (endosperm).</li>
<li>Leaves (mesophyll).</li>
</ol> </ul>
<li>Functions of parenchyma</li>
<ul> <ol>
<li>Photosynthesis</li>
<li> Food Storage</li>
<li>Storage of water</li>
<li>providing Support.</li>
</ol> </ul>
</ul> <center> <p id="eight"><u>collenchyma</u></p></center>
<img src="backGround.jpg" alt="Girl in a jacket " ><ul>
<li>Collenchyma tissue provides mechanical strength and support to the plant body.</li>
<li>They are modified parenchyma cells.</li>
<li>Collenchyma tissue consists of living cells</li>
<li>Cells possess a</li>
<ul> <ol>
<li> Cytoplasm.</li>
<li>nucleus</li>
<li>Central vacuoles.</li>
</ol> </ul>
<li>Generally, cells are elongated and polygonal in cross-section</li>
<li>The corners of the cell walls are thickened.</li>
<li>Intercellular spaces may present or may not present</li>
<li>Locations of collenchymas</li>
<ul> <ol>
<li> The epidermis of herbaceous Stems..</li>
<li>Veins of a dicot. leaves</li>
</ol> </ul>
<li>Functions of collenchyma</li>
<ul> <ol>
<li>Provides mechanical support to dicot plant stems</li>
<li>Photosynthesis</li>
</ol> </ul>
<br>
</ul> <center> <p id="nine"><u>Sclerenchyma</u></p></center>
<img src="backGround.jpg" alt="Girl in a jacket" ><ul>
<li>Sclerenchyma tissue helps in providing mechanical strength and support to the plant body</li>
<li>This tissue has two types of cells</li>
<ul> <ol>
<li>Sclereids</li>
<li> Sclerenchyma fibers</li>
</ol> </ul>
<li>Sclerenchyma tissue consists of dead cells</li>
<li>Lignin is deposited on the cellulose cell wall</li>
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