用显微镜观察洋葱表皮细胞装片,先用“20×”的目镜和“10×”的物镜观察,然后用“10×”的目镜和“40× 用显微镜观察洋葱表皮装片的同一部位,要在视野内看到的细胞数目...
\u7528\u663e\u5fae\u955c\u89c2\u5bdf\u6d0b\u8471\u8868\u76ae\u88c5\u7247\u65f6\uff0c\u5148\u540e\u752815\u00d7\u7684\u76ee\u955c\u548c10\u00d7\u7684\u7269\u955c\u4e0e10\u00d7\u7684\u76ee\u955c\u548c4\u00d7\u7684\u7269\u955c\u89c2\u5bdf\u6d0b\u8471\u8868\u76ae\u7684\u540c\u4e00\u901a\u8fc7\u5206\u6790\u53ef\u77e5\uff1a\u663e\u5fae\u955c\u6210\u50cf\u7279\u70b9\u53c8\u662f\u6210\u5012\u50cf\uff0c\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570\u6307\u7684\u662f\u7269\u955c\u548c\u76ee\u955c\u653e\u5927\u500d\u6570\u7684\u4e58\u79ef\uff0e\u5148\u540e\u752815\u00d7\u7684\u76ee\u955c\u548c10\u00d7\u7684\u7269\u955c\u4e0e10\u00d7\u7684\u76ee\u955c\u548c4\u00d7\u7684\u7269\u955c\u89c2\u5bdf\u6d0b\u8471\u8868\u76ae\u7684\u540c\u4e00\u90e8\u4f4d\uff0c\u653e\u5927\u500d\u6570\u5206\u522b\u4e3a150\u500d\u548c40\u500d\uff0e\u6839\u636e\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570\u8d8a\u5927\uff0c\u89c2\u5bdf\u5230\u7684\u8303\u56f4\u8d8a\u5c0f\uff0c\u770b\u5230\u7684\u7ec6\u80de\u5c31\u8d8a\u5c11\uff1b\u53cd\u4e4b\uff0c\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570\u8d8a\u5c0f\uff0c\u89c2\u5bdf\u5230\u7684\u8303\u56f4\u8d8a\u5927\uff0c\u770b\u5230\u7684\u7ec6\u80de\u5c31\u8d8a\u591a\uff0e\u5e76\u4e14\u4f4e\u500d\u955c\u7684\u89c6\u91ce\u4eae\uff0c\u9ad8\u500d\u955c\u7684\u89c6\u91ce\u6697\uff0e\u56e0\u6b64\u6bd4\u8f83\u4e24\u6b21\u770b\u5230\u7684\u7ed3\u679c\u662f\u90fd\u662f\u5012\u50cf\uff0c\u89c6\u91ce\u7531\u6697\u53d8\u4eae\uff0c\u7ec6\u80de\u6570\u76ee\u7531\u5c11\u53d8\u591a\uff0e\u6545\u9009\uff1aA
A\u3001\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570=10\u00d710=100\uff08\u500d\uff09\uff1bB\u3001\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570=5\u00d710=50\uff08\u500d\uff09\uff1bC\u3001\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570=10\u00d720=200\uff08\u500d\uff09\uff1bD\u3001\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570=10\u00d740=400\uff08\u500d\uff09\uff1b \u56e0\u6b64\u663e\u5fae\u955c\u653e\u5927\u500d\u6570\u6700\u5c0f\u7684\u662fB.50\u500d\uff0c\u6240\u4ee5\u89c6\u91ce\u4e2d\u7ec6\u80de\u6570\u76ee\u6700\u591a\u5e94\u9009\u62e9\u7684\u76ee\u955c\u548c\u7269\u955c\u7684\u7ec4\u5408\u662f\u76ee\u955c5\u00d7\u3001\u7269\u955c10\u00d7\uff0e\u6545\u9009\uff1aB\uff0e
B 绛旓細妞嶇墿缁嗚優杩戜技闀挎柟褰紝鏈夌粏鑳炲銆佺粏鑳炶啘銆佺粏鑳炴牳銆佺粏鑳炶川銆佸彾缁夸綋銆佹恫娉$瓑锛庡姩鐗╃粏鑳炶繎浼煎渾褰紝鏈夌粏鑳炶啘銆佺粏鑳炴牳銆佺粏鑳炶川绛夛紟娲嬭懕琛ㄧ毊缁嗚優灞炰簬妞嶇墿缁嗚優锛屾墍浠ョ粏鑳炵墿鍍忔槸C锛庢晠閫夛細C锛 绛旓細鐢ㄦ樉寰暅瑙傚療鐗╄薄鍦ㄨ閲庝腑鐨勬垚鍍忕壒鐐规槸锛氬湪鏄惧井闀滀笅鐪嬪埌鐨勬槸鏀惧ぇ鐨勫掑儚锛庡洜涓哄湪鏄惧井闀滀笅鐪嬪埌鐨勬槸鏀惧ぇ鐨勫掑儚锛屾墍浠ョ幓鐗囩Щ鍔ㄧ殑鏂瑰悜搴旇涓庤閲庝腑鐨勭墿璞$殑绉诲姩鏂瑰悜鐩稿弽锛庢晠閫夛細C 绛旓細浣跨敤鐩暅20脳鍜岀墿闀10脳锛屾斁澶у嶆暟涓20脳10鈺200鍊嶏紝浣跨敤鐩暅10脳鍜岀墿闀40脳锛屾斁澶у嶆暟涓10脳40鈺400鍊嶏紝瑙傚療娲嬭懕鍚屼竴閮紝鐢变簬绗簩绉嶆儏鍐垫瘮绗竴绉嶆儏鍐鏄惧井闀鐨勬斁澶у嶆暟澧炲ぇ锛屽湪瑙嗛噹涓湅鍒扮殑缁嗚優鏁扮洰鍑忓皯锛岀粏鑳炵殑浣撶Н澧炲ぇ锛岃閲庡彉鏆楋紝 绛旓細绛旓細鏄惧井闀鏀惧ぇ鍊嶆暟鐨勮绠楁槸鐩暅鐨勬斁澶у嶆暟涔樹互鐗╅暅鐨勬斁澶у嶆暟锛岀敤鈥16x鈥濈殑鐩暅鍜屸10x鈥濈殑鐗╅暅瑙傚療鏃讹紝鍏舵斁澶у嶆暟涓16脳10鈺160鍊嶏紱鐢ㄢ10x鈥濈殑鐩暅鍜屸40x鈥濈殑鐗╅暅瑙傚療鏃讹紝鍏舵斁澶у嶆暟涓轰负10脳40鈺400鍊岮锛氱敱浜庝簩鑰呯殑鏀惧ぇ鍊嶆暟涓嶄竴鏍凤紝瑙嗛噹浜害涔熷氨涓嶄竴鏍凤紝鏀惧ぇ鍊嶆暟瓒婂ぇ锛岃閲庤秺鏆楋紱鍙嶄箣浜︾劧锛庣敤... 绛旓細鏄惧井闀滅殑鏀惧ぇ鍊嶆暟=鐗╅暅鐨勬斁澶у嶆暟脳鐩暅鐨勬斁澶у嶆暟锛屾樉寰暅鐨勬斁澶у嶆暟瓒婂ぇ鐪嬪埌鐨缁嗚優鏁扮洰瓒婂皯锛岀墿璞℃斁澶у嶆暟瓒婂ぇ锛涙樉寰暅鐨勬斁澶у嶆暟瓒婂皬鐪嬪埌鐨勭粏鑳炴暟鐩秺澶氾紝鐗╄薄鏀惧ぇ鍊嶆暟瓒婂皬锛庤嫢瑙嗛噹涓粏鑳炴渶澶э紝鍒欐樉寰暅鐨勬斁澶у嶆暟鏄渶澶х殑锛庢樉寰暅鐨勬斁澶у嶆暟鍒嗗埆锛欰鏄100鍊嶃丅鏄400鍊嶃丆鏄50鍊嶏紟鎵浠ラ夌敤B鏀惧ぇ鍊嶆暟鏈澶... 绛旓細鏄惧井闀滅殑鏀惧ぇ鍊嶆暟澧炲姞锛岃閲庝腑缁嗚優鐨勪綋绉彉澶锛岀粏鑳鐨勬暟鐩噺灏戯紱鏄惧井闀滅殑鏀惧ぇ鍊嶆暟鍑忓皬锛岃閲庝腑缁嗚優鐨勪綋绉彉灏忥紝缁嗚優鐨勬暟鐩澶氾紱鎵浠ュ湪鎶婁綆鍊嶉暅鎹笂楂樺嶉暅鍚锛屾樉寰暅鐨勬斁澶у嶆暟鍙樺ぇ锛屾墍浠ョ墿鍍忓彉澶т簡锛瑙傚療鍒扮殑缁嗚優浣撶Н鍙樺ぇ锛岃閲庡彉灏忥紟鏁呴夛細A ... 绛旓細鏄惧井闀鐨勬斁澶у嶆暟瓒婂皬锛岃閲庡氨瓒婂ぇ锛岀湅鍒扮殑缁嗚優灏辫秺灏忥紝浣嗙粏鑳炵殑鏁扮洰瓒婂锛涙樉寰暅鐨勬斁澶у嶆暟鐨勮绠楁槸鐩暅鐨勬斁澶у嶆暟涔樹互鐗╅暅鐨勬斁澶у嶆暟锛庡湪鍥涗釜閫夐」涓瑼閫夐」鏀惧ぇ400鍊嶏紝B閫夐」鏀惧ぇ100鍊嶏紝C閫夐」鏀惧ぇ浜150鍊嶏紝D閫夐」鏀惧ぇ浜200鍊嶏紝鍙湁B椤圭殑鏀惧ぇ鍊嶆暟鏈灏忥紝鎵浠ョ湅鍒扮殑缁嗚優鏈灏忔暟鐩渶澶氾紟鏁呴塀 ... 绛旓細A銆鏄惧井闀鐨勬斁澶у嶆暟=5脳45=225锛堝嶏級锛汢銆佹樉寰暅鐨勬斁澶у嶆暟=10脳20=200锛堝嶏級锛汣銆佹樉寰暅鐨勬斁澶у嶆暟=10脳40=400锛堝嶏級锛汥銆佹樉寰暅鐨勬斁澶у嶆暟=10脳10=100锛堝嶏級锛涘洜姝ゆ樉寰暅鏀惧ぇ鍊嶆暟鏈澶х殑鏄疌.400鍊嶏紝鎵浠ラ夋嫨10脳锛40脳闀滃ご缁勫悎锛屽湪瑙嗛噹涓湅鍒扮殑 缁嗚優鏁扮洰鏈澶氾紟鏁呴夛細C锛 绛旓細銆愮瓟妗堣В鏋愩戣瘯棰樺垎鏋愶細鏄惧井闀滅殑鏀惧ぇ鍊嶆暟涓庢墍瑙傚療鍒扮殑鑼冨洿涔嬮棿鐨勫叧绯绘槸锛氭樉寰暅鐨勬斁澶у嶆暟瓒婂ぇ锛屾墍瑙傚療鍒扮殑鐗╁儚浣撶Н瓒婂ぇ锛岃閲庡唴鎵鐪嬪埌鐨勭粏鑳炴暟鐩秺灏戯紝鐩稿弽鏄惧井闀滅殑鏀惧ぇ鍊嶆暟瓒婂皬锛屾墍瑙傚療鍒扮殑鐗╁儚浣撶Н瓒婂皬锛岃閲庡唴鎵鐪嬪埌鐨勭粏鑳炴暟鐩秺澶氾紝鎵浠鐢ㄦ樉寰暅瑙傚療娲嬭懕琛ㄧ毊缁嗚優涓存椂瑁呯墖鐨勫悓涓閮ㄤ綅鏃讹紝瑕佷娇瑙嗛噹鍐呮墍... 绛旓細閫夋嫨B,D鏀惧ぇ鍊嶆暟=鐗╅暅*鐩暅锛屾斁澶у嶆暟瓒婂皬锛岀湅鍒扮殑鍍忚秺澶氾紝鏀惧ぇ鐨勫嶆暟瓒婂ぇ锛屽儚瓒婂皯锛岃秺娓呮櫚銆 本站交流只代表网友个人观点,与本站立场无关 |