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<title>Biyoloji - DersNotlari.Biz - Ödev Sitesi - Ödev Arşivi - Ödev</title>
<link>http://dersnotlari.biz/</link>
<language>ru</language>
<description>Biyoloji - DersNotlari.Biz - Ödev Sitesi - Ödev Arşivi - Ödev</description>
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						<td width="100%" height="25" background="{THEME}/images/bgt.jpg" ><font style="font-family: tahoma; font-size:14px; font-weight:bold; color:#A70000"><table style="width: 100%;" title="Biyoloji" border="0"
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      <td><a href="http://dersnotlari.biz/2008/05/10/biyoloji.html">Biyoloji</a></td>
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				<div id='news-id-268'>Biyoloji veya Canlı bilimi, canlıları inceleyen bir bilim dalıdır.<br />
<br />
Biyologlar, tüm canlıları; tüm gezegeni kaplayan küresel boyuttan, hücre ve molekülleri kapsayan mikroskobik boyuta kadar onları etkileyen önemli dinamik olaylarla birlikte inceleyen, biyoloji bilimiyle uğraşan kişilerdir. Birçok süreci bünyesinde barındıran hayati süreçlerden bazıları; enerji ve maddenin işlenmesi, vücudu oluşturan maddelerin sentezlenmesi, yaraların iyileşmesi ve tüm organizmanın çoğalmasıdır.<br /></div>
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						<td style="text-align:right; font-size:11px" width="100%">KATEGORİ: <a href="http://dersnotlari.biz/biyoloji/">Biyoloji</a> | OKUNMA: 378 | YAZAR: <b><a onclick="return dropdownmenu(this, event, UserNewsMenu('href=&quot;http://dersnotlari.biz/user/demirhan/&quot;', 'href=&quot;http://dersnotlari.biz/user/demirhan/news/&quot;','demirhan', '5'), '170px')" onMouseout="delayhidemenu()" href="http://dersnotlari.biz/user/demirhan/">demirhan</a></b> | 10 May 2008 | <a href="http://dersnotlari.biz/2008/05/10/biyoloji.html#comment"> YORUMLAR (2)</a> <table style="text-align: right;  width: 100%;" title="Biyoloji" border="0"
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						<td width="100%" height="25" background="{THEME}/images/bgt.jpg" ><font style="font-family: tahoma; font-size:14px; font-weight:bold; color:#A70000"><table style="width: 100%;" title="IKI YASAMLILAR" border="0"
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				<div id='news-id-796'>IKI YASAMLILAR (AMPHIBIA)<br />
Hem suda hem de karada yasadiklarindan iki yasamlilar anlamina Amphibia adi verilmistir. Gerek anatomi ve gerekse fizyolojik açidan baliklarla sürüngenler arasinda bir özellik gösteren Amphibia sinifi, omurgalilarin su disinda yasayan ilk grubunu olusturmaktadir. Devonien'in sonlarina dogru meydana gelen kuraklik nedeniyle, akcigerli baliklarin bazi populasyonlari yasadiklari ortamlardan çikarak karadan diger sulara geçmislerdir.</div>
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						<td style="text-align:right; font-size:11px" width="100%">KATEGORİ: <a href="http://dersnotlari.biz/biyoloji/">Biyoloji</a> | OKUNMA: 63 | YAZAR: <b><a onclick="return dropdownmenu(this, event, UserNewsMenu('href=&quot;http://dersnotlari.biz/user/demirhan/&quot;', 'href=&quot;http://dersnotlari.biz/user/demirhan/news/&quot;','demirhan', '5'), '170px')" onMouseout="delayhidemenu()" href="http://dersnotlari.biz/user/demirhan/">demirhan</a></b> | 18 Ekim 2008 | <a href="http://dersnotlari.biz/2008/10/18/iki-yasamlilar.html#comment"> YORUMLAR (0)</a> <table style="text-align: right;  width: 100%;" title="IKI YASAMLILAR" border="0"
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				<div id='news-id-795'>KUSLAR (AVES)<br />
Ön üyeleri degiserek kanat seklini aldigindan uçabilmektedirler. Bu nedenle (Latince, Aves=kus) Aves adi verilmistir. Bunlar sicakkanli (sabit sicaklikli) omurgalilarin ilk sinifini olustururlar. Vücut sicakliklari az çok sabit olup, 39-400C arasinda degisiklik gösterir. Vücutlari tüylerle kaplidir.</div>
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						<td style="text-align:right; font-size:11px" width="100%">KATEGORİ: <a href="http://dersnotlari.biz/biyoloji/">Biyoloji</a> | OKUNMA: 62 | YAZAR: <b><a onclick="return dropdownmenu(this, event, UserNewsMenu('href=&quot;http://dersnotlari.biz/user/demirhan/&quot;', 'href=&quot;http://dersnotlari.biz/user/demirhan/news/&quot;','demirhan', '5'), '170px')" onMouseout="delayhidemenu()" href="http://dersnotlari.biz/user/demirhan/">demirhan</a></b> | 18 Ekim 2008 | <a href="http://dersnotlari.biz/2008/10/18/kuslar.html#comment"> YORUMLAR (0)</a> <table style="text-align: right;  width: 100%;" title="KUSLAR" border="0"
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						<td width="100%" height="25" background="{THEME}/images/bgt.jpg" ><font style="font-family: tahoma; font-size:14px; font-weight:bold; color:#A70000"><table style="width: 100%;" title="MEMELILER" border="0"
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				<div id='news-id-794'>MEMELILER<br />
Yavrularini süt salgilayan gögüs bezleriyle beslediklerinden bu hayvanlara Mammalia adi verilmistir. Bu hayvanlar Jura'da memeli benzeri sürüngenlerden (Synapsida alt sinifinin Therapsida takimindan) ayri bir dal seklinde meydana gelmislerdir. Bu gruptaki hayvanlarin temel özelliklerinden birisi de tümünün vücudunda az yada çok sayida kilin bulunmasidir. Bir çogu gece faaliyet gösterdiginden (nokturnal) bunlari görmek ve saptamak hemen hemen olanaksizdir.<br /></div>
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						<td style="text-align:right; font-size:11px" width="100%">KATEGORİ: <a href="http://dersnotlari.biz/biyoloji/">Biyoloji</a> | OKUNMA: 58 | YAZAR: <b><a onclick="return dropdownmenu(this, event, UserNewsMenu('href=&quot;http://dersnotlari.biz/user/demirhan/&quot;', 'href=&quot;http://dersnotlari.biz/user/demirhan/news/&quot;','demirhan', '5'), '170px')" onMouseout="delayhidemenu()" href="http://dersnotlari.biz/user/demirhan/">demirhan</a></b> | 18 Ekim 2008 | <a href="http://dersnotlari.biz/2008/10/18/memeller.html#comment"> YORUMLAR (0)</a> <table style="text-align: right;  width: 100%;" title="MEMELILER" border="0"
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				<div id='news-id-793'><b>SÜRÜNGENLER (REPTILIA)</b><br />
Sürünerek hareket ettiklerinden Reptilia adi verilmistir. Permien'in baslangicinda iki yasamlilarin Labyrinthodontia alt sinifindan, üremek için suya gereksinme duymayan ve karasal yasamin kosullarina tümüyle uyum gösteren Reptilia sinifi örnekleri olusmuslardir.</div>
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						<td style="text-align:right; font-size:11px" width="100%">KATEGORİ: <a href="http://dersnotlari.biz/biyoloji/">Biyoloji</a> | OKUNMA: 58 | YAZAR: <b><a onclick="return dropdownmenu(this, event, UserNewsMenu('href=&quot;http://dersnotlari.biz/user/demirhan/&quot;', 'href=&quot;http://dersnotlari.biz/user/demirhan/news/&quot;','demirhan', '5'), '170px')" onMouseout="delayhidemenu()" href="http://dersnotlari.biz/user/demirhan/">demirhan</a></b> | 18 Ekim 2008 | <a href="http://dersnotlari.biz/2008/10/18/surungenler.html#comment"> YORUMLAR (0)</a> <table style="text-align: right;  width: 100%;" title="SÜRÜNGENLER" border="0"
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				<div id='news-id-792'>Dünyada yaşayan canlıların önemli bir kısmı tek hücrelidir. Ancak, çok hücreli organizmalar tek hücrelilere oranla daha gelişmiş bir yapı gösterirler. Çünkü bu organizmalardaki hücreler arasında mü­kemmel bir işbölümü ve koordinasyon vardır.<br /></div>
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						<td style="text-align:right; font-size:11px" width="100%">KATEGORİ: <a href="http://dersnotlari.biz/biyoloji/">Biyoloji</a> | OKUNMA: 49 | YAZAR: <b><a onclick="return dropdownmenu(this, event, UserNewsMenu('href=&quot;http://dersnotlari.biz/user/demirhan/&quot;', 'href=&quot;http://dersnotlari.biz/user/demirhan/news/&quot;','demirhan', '5'), '170px')" onMouseout="delayhidemenu()" href="http://dersnotlari.biz/user/demirhan/">demirhan</a></b> | 18 Ekim 2008 | <a href="http://dersnotlari.biz/2008/10/18/koloniler.html#comment"> YORUMLAR (0)</a> <table style="text-align: right;  width: 100%;" title="KOLONİLER" border="0"
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				<div id='news-id-736'>BİTKİ ANATOMİSİ ÇALIŞMA NOTLARI<br />
BİYOLOJİ - 2<br />
1-Çimlenmekte olan bitkinin besin gereksinimi kotiledonlarda yada özel dokularda depolanan besinlerden sağlanır.<br />
2-Kök ve gövdenin büyümesi büyüme noktalarındaki meristamatik dokuların yeni hücrelerin oluşması ve büyüme ve farklılaşması ile olur.</div>
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				<div id='news-id-734'>Hücre:<br />
*Canlıları oluşturan birimlere hücre adı verilir.<br />
* Hücrenin varlığının ve özelliklerinin bilinmesi mikroskobun bulunmasıyla başlamıştır. İlk kez Robert Hooke yaptığı basit mikroskopla şişe mantarının bir kısmını inceleyerek bal peteğine benzer yapılar görür. Gördüğü bu odacıklara hücre adını verir.</div>
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				<div id='news-id-733'><div align="center">Hayvansal Dokular</div><br />Bitkilerin ve havyaların yapısını oluşturan hücrelerin yapısal farklılıklarına ek olarak bu canlı gruplarının dokuları da çeşitli farklılıklar içerir.</div>
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				<div id='news-id-716'><div align="center">SÜNGERLER</div><br />
<br />
Sünger, bir hayvan türüdür. Ama, ayırımı öylesine güç yaratıktır ki XIX. Yüzyıl başlarına değin bitkimsi hayvan yada hayvan bitki olarak adlandırılmıştır. Sünger, çok hücreli hayvanlar arasında en ilkel yapılılardan biridir. Kas, sinir, ağız ve sindirim boşluğu, kalp gibi herhangi bir organı oluşmamışır. Buna karşın süngerlerin çok uzun zamanlardanberi yaşadığı ve varlıklarını başarıyla sürdürdükleri bilinmektedir. 5000'den çok türü olan bu hayvanlar tatlı suda ve denizlerde, 7500 metreden derin olan yerlerde bile yaşarlar.</div>
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				<div id='news-id-715'><div align="center">GENLERIN DÜNYASI </div><br />
Gen üzerine kisa bilgi:.<br />
Bu bölümde ise DNA dünyasinin birazdaha derinliklerine inerek hem egitici hem de ilgi çekici bilgiler edinecegiz. DNA nin canlilarin genetik sifresi oldugunu siklikla duyariz.Belgesellerde, dergilerde gazetelerde vs.Fakat genlerle ilgili olarak her zaman kafamizda soru isaretleri kalir.DNA ne demek?, genler insanin neresinde bulunur veya genlerle nasil oynarlar gibi sorulardir bunlar.Aslinda pekte bahsedildigi kadar karmasik bir konu degildir.<br /></div>
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						<td width="100%" height="25" background="{THEME}/images/bgt.jpg" ><font style="font-family: tahoma; font-size:14px; font-weight:bold; color:#A70000"><table style="width: 100%;" title="BIOLOGY PRESENTATION REPORT PAPER" border="0"
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				<div id='news-id-714'><div align="center">BIOLOGY PRESENTATION REPORT PAPER<br />
	</div><br />
Outline<br />
1.	Introduction <br />
2.	Prion Protein<br />
2.1.	What is Prion?<br />
2.2.	Prion Structure <br />
2.3.	The Genetic Influence on Prion Disease<br />
3.	Prion Progress<br />
3.1.	Prion Progress Within The Cell (Conversion of Healthy Protein PrPc to Infectious PrPsc (Pathogenic Prion Protein)<br />
3.2.	Prion Progress Within The Body<br />
4.	Introduction to Prion Diseases<br />
5.	What Is BSE?<br />
5.1.	Origins of BSE<br />
5.2.	How BSE Works<br />
5.3.	Animal Consequences<br />
5.4.	Tests for BSE<br />
6.	What Is nvCJD?<br />
6.1.	Symptoms<br />
6.2.	Historical Development<br />
6.3.	Differences Between CJD and nvCJD<br />
7.	BSE and nvCJD In The World and In Turkey<br />
7.1.	BSE (bovine spongiform encephalopathy) or madcow disease<br />
7.2.	nvCJD (new variant Creutzfeld-Jacob Disease)<br />
7.3.	Measures taken<br />
7.4.	International efforts<br />
7.5.	BSE and nvCJD IN TURKEY<br />
8.	Protection From Prion Related Diseases<br />
8.1.	Species Barrier<br />
8.2.	Some Suggestions About Protection From Prion Related Diseases<br />
<br />
1.Introduction:<br />
<br />
The report&#8217;s topic is the prion diseases. In the report, firstly the structure of prion protein will be explained, and then the progress of prion protein&#8217;s entrance to the cell will be summarized. After the brief summary of the spread of prion protein among cells, most common prion diseases will be introduced. CJD (Creautzfeld-Jakop disease), and BSE ( Bovine Spongiform Encephalopathy) will be determined much more deeply then the others. These disease&#8217;s spread over the world and Turkey will be explained, and finally the protection ways from these diseases will be given.<br /></div>
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				<div id='news-id-713'><div align="center">BİTKİ ANATOMİSİ DERS NOTLARI</div><br />
<span style="font-weight: bold;">BİYOLOJİ - 2</span><br />
<br />
1-Çimlenmekte olan bitkinin besin gereksinimi kotiledonlarda yada özel dokularda depolanan besinlerden sağlanır.<br />
<br />
2-Kök ve gövdenin büyümesi büyüme noktalarındaki meristamatik dokuların yeni hücrelerin oluşması ve büyüme ve farklılaşması ile olur.</div>
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				<div id='news-id-690'>SÜNGERLER<br />
<br />
Sünger, bir hayvan türüdür. Ama, ayırımı öylesine güç yaratıktır ki XIX. Yüzyıl başlarına değin bitkimsi hayvan yada hayvan bitki olarak adlandırılmıştır. Sünger, çok hücreli hayvanlar arasında en ilkel yapılılardan biridir. Kas, sinir, ağız ve sindirim boşluğu, kalp gibi herhangi bir organı oluşmamışır. Buna karşın süngerlerin çok uzun zamanlardanberi yaşadığı ve varlıklarını başarıyla sürdürdükleri bilinmektedir. 5000'den çok türü olan bu hayvanlar tatlı suda ve denizlerde, 7500 metreden derin olan yerlerde bile yaşarlar.<br /></div>
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						<td width="100%" height="25" background="{THEME}/images/bgt.jpg" ><font style="font-family: tahoma; font-size:14px; font-weight:bold; color:#A70000"><table style="width: 100%;" title="BIOLOGY PRESENTATION REPORT PAPER" border="0"
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				<div id='news-id-679'>1.Introduction:<br />
<br />
The report&#8217;s topic is the prion diseases. In the report, firstly the structure of prion protein will be explained, and then the progress of prion protein&#8217;s entrance to the cell will be summarized. After the brief summary of the spread of prion protein among cells, most common prion diseases will be introduced. CJD (Creautzfeld-Jakop disease), and BSE ( Bovine Spongiform Encephalopathy) will be determined much more deeply then the others.</div>
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				<div id='news-id-678'><div align="center">BIOLOGY</div><br />
DNA STRUCTURE & FUNCTION<br />
<br />
The Discovery of DNA                                       <br />
     In 1953 James D. Watson and Francis H.C. Crick published a paper in which they proposed a model for the physical and chemical structure of the DNA molecule. According to their model, most DNA consists of two polynucleotide chains wound around each other in a right-handed (clockwise) helix. In generating their model, Watson and Crick used three main pieces of evidence: <br /></div>
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				<div id='news-id-668'>BOŞALTIM SİSTEMİ Hücre, canlılığını ve işlevlerini ancak çok sınırlı koşullarda sürdürebilir. Gerek hücre içi, gerek hücre arası veya benzer sıvı maddeler arasındaki denge bu koşullardan biridir. İç ortam koşullarının sabit tutulmasına &#8220;HOMEOSTASİS&#8221; denir. Bu iç ortamın sabit tutulması canlının yaşadığı ortama (tuzlu su, tatlı su veya karada) göre değişiklik gösterir.</div>
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				<div id='news-id-508'>DOKULAR<br />
Doku:Yüksek yapılı organizmalarda çok sayıda hücre vardır.Bu hücreler kendi aralarında yapısal ve işlevsel birlikler oluştururlar.Canlılarda aynı işlevi yapan hücreler topluluklarına doku denir.<br />
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Doku:Yüksek yapılı organizmalarda çok sayıda hücre vardır.Bu hücreler kendi aralarında yapısal ve işlevsel birlikler oluştururlar.Canlılarda aynı işlevi yapan hücreler topluluklarına doku denir.<br />
   Dokular canlının erginlikten önceki yaşamında başlar ve erişkinliğe ulaşınca son biçimini alır.Hayvanların yapısındakilere hayvansal,bitkilerin yapısındakilere de bitkisel dokular denir.</div>
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