候鸟 2005-3-31 11:07
[分享]来自实验室的色彩(一)--带你进入微观世界
<b>实验室对大多数人来说,是陌生的、甚至有些神秘色彩,而对于长期从事研究、分析的人来说,又觉得甚是枯燥无味的~<br>
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其实,换一种角度去欣赏-里面确实有<table glow width=255><tr><td style="filter:glow(color=#A047DB, strength=2)">“色彩”</td></tr></table glow>,不信,就跟我进来吧--</b><br>
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候鸟 2005-3-31 11:14
re:[B]一、植物类组织:[/B]淀...
<b>一、植物类组织:</b><br>[_#t0Y'Y4DE5I
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淀粉在高倍显微镜下的模样:<br>UC-GC+w5Df'J?&V)s
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一个小水泡在高倍显微镜下的模样:<br>Nv]f Uxy,V+R
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石细胞团(比如:在梨果肉里很容易吃到的那种硬硬的小粒状的东西就是石细胞团):<br>
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被拔离的单个石细胞:<br>
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候鸟 2005-3-31 12:20
re:[img]../images/fil...
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维管束组织-主要由纤维及导管组成,主要起输送、支撑连结的作用(有点类似动物的骨骼),一般分布在植物的枝梗(茎)、根茎、根及叶脉;我们平时吃甘蔗、蔬菜等所见到的那些纤维状的东西,其实就是维管束:<br> v[
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导管:<br>#^UA#JG^4~
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草酸钙结晶:一般多含于植物的茎、、根茎、块根及叶、花,并不是所有的植物都含有草酸钙结晶,这正好成为鉴别特征之一(下图是草酸钙针晶束在高倍显微镜下的样子):<br>
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候鸟 2005-3-31 12:35
re:[B]微生物类:[/B]培养基-...
<b>微生物类:</b><br>
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培养基--一般生测试验都是用“细菌培养皿”加上特定的营养及基质(比如琼脂),然后在实验室的无菌条件下,把需要检测的载体(如药品、食品提取液或者生物组织切片等)涂抹在培养基上,在特定的条件下进行培养,然后再进行菌落计数、或进一步鉴定,下面这张就是一个培养后的培养基-上面可以看到菌落生长状况:<br>Lz
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这就是培养基上的菌落(低倍显微镜下):<br>!c0j6R7p
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候鸟 2005-3-31 12:40
re:高倍镜下(细菌):[img].....
高倍镜下(细菌):<br>
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河水里的浮游微生物:<br>AJG ?1m C
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高倍镜下的某种细菌:<br>
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