تبلیغات
دانستنی های علوم - ساخت ماکت سلول گیاهی و جانوری
دانستنی های علوم
رسیدن به اهداف بزرگ، جز با کسب علم امکان پذیر نیست. مقام معظم رهبری
چهارشنبه سیزدهم بهمن 1389

ساخت ماکت سلول گیاهی و جانوری

چهارشنبه سیزدهم بهمن 1389

نوع مطلب :زیست شناسی، 
نویسنده :حمیده عالی

برای سلول گیاهی از یک ظرف شفاف وجه دار و با گودی مناسب و برای سلول جانوری از یک ظرف فاقد وجه و با گودی لازم استفاده می کنیم. با استفاده از خمیر گل چینی، منجوق، سیم های مفتولی با دو قطر متفاوت، مروارید های رنگی و لامپ های کوچک که قسمت های فلزی آن ها جدا شده باشند، به ترتیب اندامک ها، ریبوزوم، اسکلت سلولی، پراکسیزوم، لیزوزوم و واکوئل ها را تهیه می کنیم. از پارافین اسفنجی بی رنگ به عنوان سیتوپلاسم استفاده می کنیم؛ زیرا هم می توانیم اندامک ها را در محل خود ثابت نگه داریم و هم چون نیمه جامد است به سیتوپلاسم شبیه تر است. پارافین را کم کم اضافه می کنیم و اجزا را لایه لایه و با آرایش درست درون آن می چینیم.

                              

منبع:مجله رشد آموزش زیست شناسی شماره 73 ، شهین سرگزی

                            ***************************************

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