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daneshjoei - گزارش كار آزمایشگاه گیاهشناسی -بشره پیاز
پنجشنبه 15 اردیبهشت 1390

گزارش كار آزمایشگاه گیاهشناسی -بشره پیاز

   نوشته شده توسط: reza jalilian    

نام آزمایش:مشاهده اپیدرم پیاز

هدف آزمایش:بررسی سلول های اپیدرمی

مواد و وسایل مورد نیاز:

میکروسکوپ،لام و لامل،تیغ،آب مقطر،پیاز

روش انجام کار:

یک لایه از پیاز جدا می کنیم و سپس اپیدرم بیرونی یا درونی ان را با دست از برگ جدا کرده روی لام قرار  داده، قسمت های اضافی را با تیغ برش زده و جدا می کنیم ،با ریختن چند قطره آب بر روی نمونه از خشک شدن سلول جلوگیری می کنیم،سپس لامل را روی ان قرار می دهیم و برای مطالعه نمونه ان را زیر میکروسکوپ قرار می دهیم.(در مشاهده این نمونه از لنز 40 استفاده می کنیم)

تعداد سلول های مشاهده شده را یادداشت می کنیم و سپس تعداد سلول ها در یک سانتیمتر مکعب را به دست می اوریم.(7 یاخته مشاهده شد)

تصویر مشاهده شده با آب:

           پس از استفاده از لوگل

 

 


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