關(guān)于細胞膜對不同物質(zhì)通透性的差異的研究(完整版)
【正文】 ammonium chloride, glycerin, acetone, etc into the cell, will cause a higher osmotic pressure, water molecules into the cell, the cell expansion even burst, occurred the phenomenon of erythrocyte hemolysis, at this point, the light is more easily through the solution, the original red opaque red blood cell suspension suddenly bee transparent hemoglobin solution, We happened to determine whether hemolysis phenomenon, Due to a variety of solute into cells at different rates, so the different solute induced erythrocyte hemolysis time also different.Keywords: Red blood cells Membrane permeability Hemolysis前言：細胞膜將細胞內(nèi)物質(zhì)與細胞外環(huán)境隔離開，為細胞內(nèi)各種新陳代謝提供了一個相對比較穩(wěn)定的內(nèi)環(huán)境。但是這種隔離并不是絕對的，因為細胞要與周圍環(huán)境進行物質(zhì)和能量的交換，因此細胞膜也是細胞與外界環(huán)境進行物質(zhì)交換的結(jié)構(gòu)。 取試管2支，輕輕搖勻，注意觀察溶液顏色變化，如發(fā)生溶血，記錄溶血時間。圖1 溶液相對分子質(zhì)量與人血紅細胞溶血時間的關(guān)系把不同溶質(zhì)的溶血時間分為兩類：電解質(zhì)與非電解質(zhì)，如圖表表3。因為銨鹽發(fā)生溶血現(xiàn)象的機制主要是因為銨根離子發(fā)生了電離平衡，所以銨根離子的濃
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