人体正常细胞与癌细胞的生物\生命习性的区别与比较

来源:用户上传      作者:

　　关键词：细胞 癌细胞 生物 生命 习性 区别 比较
　　前言
　　癌症与其他疾病不同的是它是人体的正常细胞变异的一种细胞性疾病。
　　（一）、人体正常的细胞的生命特性――人体的正常细胞是一种有寿命的细胞，它去陈出新、新陈代谢。每天有大量的老细胞死亡，每天又有大量的新细胞生出（补充）。
　　（二）、癌细胞的生命特性――癌细胞是一种无寿命的细胞，它无去陈出新、新陈代谢。它是一种不死的细胞。它是无性繁殖（分裂、分化），无休止并呈堆积性生长。
　　（三）、人体正常细胞的生物、生命习性――人体正常细胞每天都需要一定量的水、电解质和蛋白质等的供应才能存活，否则即会死亡。
　　（四）、癌细胞的生物、生命习性――癌细胞与人体正常细胞所需要的营养物质的特性是一致的。
　　（五）、比较与区别
　　1、人体正常细胞――去陈出新、新陈代谢。细胞生长到一定程度、一定时间即会死亡。每天都有大量的老细胞死亡，而每天又有大量的新细胞生出（补充）。
　　2、癌细胞――是一种不死的细胞，它无去陈出新、无新陈代谢，它无休止并呈堆积性生长。
　　（六）、讨论
　　人体正常细胞与癌细胞的异同
　　不同：人体正常细胞是有寿命、有生长周期的。
　　相同：人体正常细胞与癌细胞所需的营养物质是相同的，因为癌细胞无休止的生长、分化，家族成员不断扩大，所需的营养物质也就越多。人体的营养物质无法满足它们的需要，因而造成人死亡。
　　
　　The Comparison between Normal Cells and Cancer Cells in the Body
　　Authors:
　　1. Fan Zhihua, Hangzhou Fanzhihua Medical Technology Development Co. Ltd, 310012
　　2. Chen Shaoyan, Hangzhou Qianjiang Hospital
　　3. Xu Jianbin, Department of Pathology Research, Fuzhou Medical College of Nanchang University
　　4. Zhao Wenqiang, No.2 Hospital of Integrated Traditional Chinese and Western Medicine of Nanchang
　　
　　 Keywords:normal Cellcancer cell comparison
　　 Introduction
　　Cancer is a cellular disease which results from body cells’ self mutation caused by external injuries.
　　 (一) The features of normal cells - normal cells of the body have growth circle. They grow in the form of metabolism. Every day can see a large number of old cells die, and a large number of new cells come out (to supplement).
　　 (二)The features of cancer cells - cancer cells have no growth circle, they can not metabolize by themselves. They are deathless cells. They can do asexual reproduction (division, differentiation) to accumulate in a ceaseless way.
　　 (三) The features of normal human cells - normal body cells need a certain amount of water, electrolyte and protein to survive. Otherwise they will die.
　　 (四) The features of cancer cells- cancer cells and normal cells are the same in the point that they both need the nutrient supply.
　　 (五)Comparisons
　　 1. Normal human cells can metabolize by themselves. When they grow to certain level, they will die. Every day can see a large number of old cells die, and a large number of new cells come out (to supplement).
　　 2. Cancer cells are deathless cells. They cannot metabolize by themselves. It grows by accumulation ceaselessly.
　　 (六) Discussion
　　Similarities and differences between normal cells and cancer cells:
　　 Differences: normal cells have growth cycle.
　　Similarities: normal cells and cancer cells both need nutrients from the body. Cancercells can ceaselessly divide and differentiate themselves so that they need much more nutrients from the body. If the nutrient supply can not meet their needs, it will result in death.

转载注明来源:https://www.xzbu.com/1/view-14620158.htm