下面是某校学生制作口腔上皮细胞临时装片并观察的实验,请回答:(1)制作口腔上皮细胞临时装片时,盖盖 下面是某校学生制作口腔上皮细胞临时装片并观察的实验,请回答:...
\u4e0b\u9762\u662f\u67d0\u6821\u5b66\u751f\u5236\u4f5c\u53e3\u8154\u4e0a\u76ae\u7ec6\u80de\u4e34\u65f6\u88c5\u7247\u5e76\u89c2\u5bdf\u7684\u5b9e\u9a8c\uff0c\u8bf7\u56de\u7b54\uff1a \uff081\uff09\u5236\u4f5c\u53e3\u8154\u4e0a\u76ae\u7ec6\u80de\u4e34\u65f6\u88c5\u7247\u65f6\uff0c\u76d6\uff081\uff09C\uff0e \uff082\uff09\u7898\u6db2\uff0e \uff083\uff09\u53f3\u4e0a\uff1b\u51cf\u5c11\uff0e \uff084\uff09\u76ee\u955c\uff0e \u8bd5\u9898\u5206\u6790\uff1a\uff1a\uff081\uff09\u5236\u4f5c\u4e34\u65f6\u88c5\u7247\u65f6\uff0c\u201c\u76d6\u201d\u8fd9\u4e00\u6b65\u7684\u6b63\u786e\u64cd\u4f5c\u662f\u7528\u954a\u5b50\u5939\u8d77\u76d6\u73bb\u7247\uff0c\u4f7f\u5b83\u7684\u4e00\u4fa7\u5148\u63a5\u89e6\u8f7d\u73bb\u7247\u4e0a\u7684\u6db2\u6ef4\uff0c\u7136\u540e\u7f13\u7f13\u653e\u5e73\uff0e\u5176\u76ee\u7684\u662f\u9632\u6b62\u76d6\u73bb\u7247\u4e0b\u51fa\u73b0\u6c14\u6ce1\uff0e\uff082\uff09\u5236\u4f5c\u53e3\u8154\u4e0a\u76ae\u7ec6\u80de\u4e34\u65f6\u88c5\u7247\u7684\u6b65\u9aa4\u53ef\u6982\u62ec\u4e3a\uff1b\u64e6\u2192\u6ef4\u2192\u53d6\u2192\u76d6\u2192\u67d3\u2192\u5438\u7b49\u51e0\u6b65\uff0c\u4e3a\u4e86\u4fbf\u4e8e\u5728\u663e\u5fae\u955c\u4e0b\u89c2\u5bdf\u65f6\u7269\u50cf\u6e05\u6670\uff0c\u5728\u67d3\u8272\u65f6\u7528\u7898\u6db2\u5bf9\u53e3\u8154\u4e0a\u76ae\u7ec6\u80de\u8fdb\u884c\u67d3\u8272\u5904\u7406\uff0e\uff083\uff09\u663e\u5fae\u955c\u5448\u5012\u7acb\u7684\u50cf\uff0c\u7269\u50cf\u7684\u79fb\u52a8\u65b9\u5411\u548c\u73bb\u7247\u7684\u79fb\u52a8\u65b9\u5411\u76f8\u53cd\uff0e\u56fe\u4e2d\u4f7f\u7528\u663e\u5fae\u955c\u89c2\u5bdf\u73bb\u7247\u65f6\uff0cA\u7ec6\u80de\u7269\u50cf\u4f4d\u4e8e\u89c6\u91ce\u53f3\u4e0a\u65b9\uff0c\u8981A\u7ec6\u80de\u79fb\u81f3\u89c6\u91ce\u4e2d\u592e\uff0c\u7269\u50cf\u5e94\u5411\u5de6\u4e0b\u65b9\u79fb\u52a8\uff0c\u56e0\u6b64\u8f7d\u73bb\u7247\u5e94\u5411\u53f3\u4e0a\u65b9\u79fb\u52a8\uff0e\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570=\u7269\u955c\u7684\u653e\u5927\u500d\u6570\u00d7\u76ee\u955c\u7684\u653e\u5927\u500d\u6570\uff0c\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570\u8d8a\u5927\u770b\u5230\u7684\u7ec6\u80de\u5c31\u8d8a\u5c11\u3001\u8d8a\u5927\uff1b\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570\u8d8a\u5c0f\uff0c\u770b\u5230\u7684\u7ec6\u80de\u5c31\u8d8a\u591a\u3001\u8d8a\u5c0f\uff0e\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570\u8d8a\u5927\uff0c\u89c6\u91ce\u5c31\u8d8a\u7a84\uff0c\u900f\u5149\u91cf\u53d8\u5c11\uff0c\u89c6\u91ce\u5c31\u4f1a\u53d8\u6697\uff0c\u53cd\u4e4b\uff0c\u8d8a\u4eae\uff0e\u7efc\u4e0a\u6240\u8ff0\uff0c\u628a\u4f4e\u500d\u7269\u955c\u8f6c\u5316\u6210\u9ad8\u500d\u7269\u955c\u540e\uff0c\u89c2\u5bdf\u5230\u7684\u7ec6\u80de\u51cf\u5c11\uff0c\u53d8\u5927\uff0c\u53d8\u6697\uff0e\uff084\uff09\u6211\u4eec\u89c6\u91ce\u4e2d\u80fd\u770b\u5230\u6c61\u70b9\u7684\u4f4d\u7f6e\u53ea\u6709\u76ee\u955c\u3001\u7269\u955c\u3001\u4e0e\u73bb\u7247\u6807\u672c\uff0c\u79fb\u52a8\u88c5\u7247\u6c61\u7269\u4e0d\u52a8\uff0c\u6362\u4e0a40\u00d7\u7269\u955c\u540e\uff0c\u6c61\u7269\u4ecd\u4e0d\u52a8\uff0e\u5c31\u6392\u9664\u4e86\u6c61\u70b9\u5728\u7269\u955c\u4e0e\u73bb\u7247\u6807\u672c\u4e0a\u7684\u53ef\u80fd\uff0c\u53ea\u80fd\u662f\u5728\u76ee\u955c\u4e0a\u4e86\uff0e\u6545\u7b54\u6848\u4e3a\uff1a\uff081\uff09C\uff0e\uff082\uff09\u7898\u6db2\uff0e\uff083\uff09\u53f3\u4e0a\uff1b\u51cf\u5c11\uff0e\uff084\uff09\u76ee\u955c\uff0e\u8003\u70b9\uff1a
\uff081\uff09\u5236\u4f5c\u4e34\u65f6\u88c5\u7247\u65f6\uff0c\u201c\u76d6\u201d\u8fd9\u4e00\u6b65\u7684\u6b63\u786e\u64cd\u4f5c\u662f\u7528\u954a\u5b50\u5939\u8d77\u76d6\u73bb\u7247\uff0c\u4f7f\u5b83\u7684\u4e00\u4fa7\u5148\u63a5\u89e6\u8f7d\u73bb\u7247\u4e0a\u7684\u6db2\u6ef4\uff0c\u7136\u540e\u7f13\u7f13\u653e\u5e73\uff0e\u5176\u76ee\u7684\u662f\u9632\u6b62\u76d6\u73bb\u7247\u4e0b\u51fa\u73b0\u6c14\u6ce1\uff0e\uff082\uff09\u5236\u4f5c\u53e3\u8154\u4e0a\u76ae\u7ec6\u80de\u4e34\u65f6\u88c5\u7247\u7684\u6b65\u9aa4\u53ef\u6982\u62ec\u4e3a\uff1b\u64e6\u2192\u6ef4\u2192\u53d6\u2192\u76d6\u2192\u67d3\u2192\u5438\u7b49\u51e0\u6b65\uff0c\u4e3a\u4e86\u4fbf\u4e8e\u5728\u663e\u5fae\u955c\u4e0b\u89c2\u5bdf\u65f6\u7269\u50cf\u6e05\u6670\uff0c\u5728\u67d3\u8272\u65f6\u7528\u7898\u6db2\u5bf9\u53e3\u8154\u4e0a\u76ae\u7ec6\u80de\u8fdb\u884c\u67d3\u8272\u5904\u7406\uff0e\uff083\uff09\u663e\u5fae\u955c\u5448\u5012\u7acb\u7684\u50cf\uff0c\u7269\u50cf\u7684\u79fb\u52a8\u65b9\u5411\u548c\u73bb\u7247\u7684\u79fb\u52a8\u65b9\u5411\u76f8\u53cd\uff0e\u56fe\u4e2d\u4f7f\u7528\u663e\u5fae\u955c\u89c2\u5bdf\u73bb\u7247\u65f6\uff0cA\u7ec6\u80de\u7269\u50cf\u4f4d\u4e8e\u89c6\u91ce\u53f3\u4e0a\u65b9\uff0c\u8981A\u7ec6\u80de\u79fb\u81f3\u89c6\u91ce\u4e2d\u592e\uff0c\u7269\u50cf\u5e94\u5411\u5de6\u4e0b\u65b9\u79fb\u52a8\uff0c\u56e0\u6b64\u8f7d\u73bb\u7247\u5e94\u5411\u53f3\u4e0a\u65b9\u79fb\u52a8\uff0e\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570=\u7269\u955c\u7684\u653e\u5927\u500d\u6570\u00d7\u76ee\u955c\u7684\u653e\u5927\u500d\u6570\uff0c\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570\u8d8a\u5927\u770b\u5230\u7684\u7ec6\u80de\u5c31\u8d8a\u5c11\u3001\u8d8a\u5927\uff1b\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570\u8d8a\u5c0f\uff0c\u770b\u5230\u7684\u7ec6\u80de\u5c31\u8d8a\u591a\u3001\u8d8a\u5c0f\uff0e\u663e\u5fae\u955c\u7684\u653e\u5927\u500d\u6570\u8d8a\u5927\uff0c\u89c6\u91ce\u5c31\u8d8a\u7a84\uff0c\u900f\u5149\u91cf\u53d8\u5c11\uff0c\u89c6\u91ce\u5c31\u4f1a\u53d8\u6697\uff0c\u53cd\u4e4b\uff0c\u8d8a\u4eae\uff0e\u7efc\u4e0a\u6240\u8ff0\uff0c\u628a\u4f4e\u500d\u7269\u955c\u8f6c\u5316\u6210\u9ad8\u500d\u7269\u955c\u540e\uff0c\u89c2\u5bdf\u5230\u7684\u7ec6\u80de\u51cf\u5c11\uff0c\u53d8\u5927\uff0c\u53d8\u6697\uff0e\uff084\uff09\u6211\u4eec\u89c6\u91ce\u4e2d\u80fd\u770b\u5230\u6c61\u70b9\u7684\u4f4d\u7f6e\u53ea\u6709\u76ee\u955c\u3001\u7269\u955c\u3001\u4e0e\u73bb\u7247\u6807\u672c\uff0c\u79fb\u52a8\u88c5\u7247\u6c61\u7269\u4e0d\u52a8\uff0c\u6362\u4e0a40\u00d7\u7269\u955c\u540e\uff0c\u6c61\u7269\u4ecd\u4e0d\u52a8\uff0e\u5c31\u6392\u9664\u4e86\u6c61\u70b9\u5728\u7269\u955c\u4e0e\u73bb\u7247\u6807\u672c\u4e0a\u7684\u53ef\u80fd\uff0c\u53ea\u80fd\u662f\u5728\u76ee\u955c\u4e0a\u4e86\uff0e\u6545\u7b54\u6848\u4e3a\uff1a\uff081\uff09C\uff0e\uff082\uff09\u7898\u6db2\uff0e\uff083\uff09\u53f3\u4e0a\uff1b\u51cf\u5c11\uff0e\uff084\uff09\u76ee\u955c\uff0e
(1)制作临时装片时,“盖”这一步的正确操作是用镊子夹起盖玻片,使它的一侧先接触载玻片上的液滴,然后缓缓放平.其目的是防止盖玻片下出现气泡.(2)制作口腔上皮细胞临时装片的步骤可概括为;擦→滴→取→盖→染→吸等几步,为了便于在显微镜下观察时物像清晰,在染色时用碘液对口腔上皮细胞进行染色处理.
(3)显微镜呈倒立的像,物像的移动方向和玻片的移动方向相反.图中使用显微镜观察玻片时,A细胞物像位于视野右上方,要A细胞移至视野中央,物像应向左下方移动,因此载玻片应向右上方移动.
显微镜的放大倍数=物镜的放大倍数×目镜的放大倍数,显微镜的放大倍数越大看到的细胞就越少、越大;显微镜的放大倍数越小,看到的细胞就越多、越小.
显微镜的放大倍数越大,视野就越窄,透光量变少,视野就会变暗,反之,越亮.
综上所述,把低倍物镜转化成高倍物镜后,观察到的细胞减少,变大,变暗.
(4)我们视野中能看到污点的位置只有目镜、物镜、与玻片标本,移动装片污物不动,换上40×物镜后,污物仍不动.就排除了污点在物镜与玻片标本上的可能,只能是在目镜上了.
(5)细胞核是遗传信息库,细胞核中含有染色体,染色体是容易被碱性染料如碘液染成深色的物质,因此观察经过染色的洋葱鳞片叶表皮细胞时,各部分结构中染色最深的是细胞核.
故答案为:
(1)C.
(2)碘液.
(3)右上;减少.
(4)目镜.
(5)细胞核
绛旓細鍒濅竴鐨瀛︾敓瀛︿範缁嗚優,缁欏鐢熺殑涓嶄粎鏄柊濂囨湁瓒,鏇寸敱浜庣粏鑳炵殑寰皬,瀛﹁捣鏉ュ叾瀹炶繕鏄湁寰堝ぇ闅惧害鐨勩備负浜嗚瀛︾敓璁よ瘑缁嗚優鐨勭粨鏋,鍓嶄竴鍛ㄤ笂璇,涓鏂归潰璁茶В绀鸿寖骞朵翰鑷綋楠屾樉寰暅鐨勭敤娉,鐒跺悗鍙堟妸瀛︾敓甯﹀埌瀹為獙瀹,璁╁鐢熶翰鑷姩鎵嬪仛瀹為獙,鍒朵綔娲嬭懕琛ㄧ毊鐨勪复鏃惰鐗囧拰鍙h厰涓婄毊缁嗚優瑁呯墖,鍦ㄦ樉寰暅涓嬭繘琛岃瀵,鐢辨鐪熸璁よ瘑浜嗙粏鑳炵殑缁撴瀯,鎶婂井瑙傜殑...
绛旓細杩樻湁灏辨槸48澶ч鎸囧嚭璇曢獙瑁呯疆涓澶勯敊璇苟绾犳,36棰鍒朵綔浜鍙h厰涓婄毊缁嗚優鐢ㄥ噳寮姘存急鍙g殑鐩殑涓绌,瀛︾敓绛旈璇嶄笉杈炬剰琛ㄨ揪鑳藉姏杈冨樊銆 5銆佸簲鐢ㄧ敓鐗╁鐭ヨ瘑杩佺Щ鐨勮兘鍔涘樊,涓嶈兘涓庣ぞ浼氥佺敓浜с佺敓娲荤浉鑱旂郴,缂轰箯鐢熸椿鐨勫熀鏈父璇,瀵瑰熀纭鐭ヨ瘑鍦ㄦ柊鎯呮櫙涓嬩笉鑳芥纭簲鐢,瀵归棶棰樹笉鍠勪簬鍒嗘瀽銆備笌瀛︾敓骞虫椂涓嶅弬鍔犵敓浜у姵鍔ㄣ佽劚绂诲疄闄呯敓娲绘湁鍏,...
绛旓細6.鏌愬悓瀛﹀埗浣滃苟瑙傚療鍙h厰涓婄毊缁嗚優鐨勪复鏃惰鐗囥傝鏍规嵁鎵瀛︾敓鍛界瀛︾煡璇嗗洖绛(鍦ㄦ嫭鍙峰唴濉閫夌瓟妗堢殑缂栧彿):(1)涓嬪浘鏄埗浣滃彛鑵斾笂鐨粏鑳涓存椂瑁呯墖鐨勫洓涓楠,姝g‘鐨勯『搴忓簲鏄( )銆侫.鈶犫憽鈶⑩懀 B.鈶犫憽鈶b憿 C.鈶犫憿鈶♀懀(2)璇ュ悓瀛﹀湪鏄惧井闀滃鍏夋椂鍙戠幇瑙嗛噹鍋忔殫銆備粬搴旈夌敤___闈㈤暅鏉ユ彁楂樹寒搴︺(3)璇ュ悓瀛﹀湪姝g‘瀵瑰厜鍚庡噯澶...
绛旓細涓銆佸疄楠岃璁℃濇兂锛 1 路 鎼缓浼樺寲瀹為獙杩囩▼鍙婂煿鍏瀛︾敓鍒涙柊鑳藉姏鐨勫钩鍙帮紱2 路 鍒涜瀛︾敓瀛︿範鐨勬儏鏅紝婵鍙戝鐢熶富浣撳弬涓庢剰璇嗭紝鍩瑰吇瀛︾敓鍒涙柊瀹炶返鑳藉姏銆備簩銆佸疄楠岀洰鐨勮姹傦細1. 璁よ瘑浜轰綋缁嗚優鐨勫熀鏈粨鏋勩2. 缁冧範鍒朵綔涓存椂瑁呯墖鍜屼娇鐢ㄦ樉寰暅銆3. 鐢讳竴涓鍙h厰涓婄毊缁嗚優鍥俱備笁銆佹帰绌跺疄楠屽噯澶囷細1銆佸疄楠...
绛旓細浣嗗湪鍋氳繖涓疄楠屾椂鐢变簬绉嶇鍘熷洜锛屽埌鑷村疄楠岀殑鏁堟灉涓嶉偅涔堟槑鏄撅紝浠ヨ嚦浜庝笉灏瀛︾敓閮芥病鏈夊緢濂界殑瑙傚療鍒板疄楠岀幇璞★紝缁忓垎鏋愶紝鏈汉璁や负涓昏鍘熷洜鍙婃敼杩涙柟娉曞涓嬶細浜屻 瀹為獙鏁堟灉涓嶆槑鏄剧殑鍘熷洜鍙婂垎鏋 1.1 鍒朵綔銆佽瀵熶汉浣鍙h厰涓婄毊缁嗚優涓存椂瑁呯墖瀹為獙鏁堟灉涓嶆槑鏄剧殑鍘熷洜 鈶犲疄楠屾椂瀛︾敓涓嶈兘鎶婄粏鑳炲緢濂藉彇涓嬫潵銆備功涓婅姹傚疄楠屽墠...
绛旓細閲嶅2锝3娆★紝浣挎煋娑叉蹈娑﹀埌鏍囨湰鐨勫叏閮紟浠庡浘涓彲浠ョ湅鍑猴細鈶♀憼鈶b憿鈶わ紟锛2锛夊湪杩囩▼鈶腑锛屼负浜嗛槻姝㈡湁杈冨ぇ鐨勬皵娉′骇鐢燂紝姝g‘鐨勫仛娉曟槸锛氱敤闀婂瓙澶硅捣鐩栫幓鐗囷紝浣垮畠鐨勪竴绔厛鎺ヨЕ杞界幓鐗囦笂鐨勬恫婊达紝鐒跺悗缂撶紦鏀惧钩锛庯紙3锛夐氳繃瑙傚療褰㈢姸鍙互鐪嬪嚭锛屽浘涓瑿鏄缁忕粏鑳烇紝B鏄鐗╃粏鑳烇紝A鏄汉浣鍙h厰涓婄毊缁嗚優锛庢晠绛旀涓猴細...
绛旓細30.鍦鍒朵綔鍜岃瀵熶汉鐨鍙h厰涓婄毊缁嗚優瑁呯墖鏃,涓嬪垪鍙欒堪姝g‘鐨勬槸 A.鍦ㄨ閲庝腑鍑虹幇浜嗚缁嗚優寰堝彲鑳芥槸鐗欑鍒虹牬浜嗗彛鑵斿 B.瑙傚療瑁呯墖鏃,搴斾娇鐢ㄥ嚬闈㈤暅灏嗚閲庤皟鏆 C.涓轰簡闃叉姘旀场鐨勪骇鐢,搴斿钩鏀剧洊鐜荤墖 D.濡傛灉瑙嗛噹涓殑缁嗚優鍙戠敓鐨辩缉,鍙兘鏄敓鐞嗙洂姘寸殑娴撳害杩囦綆 31.鍖栫煶璇佹槑鏈夎澶氱敓鐗╃绫诲彧瀛樻椿浜嗙浉褰撶煭鏆傜殑鏃堕棿灏遍愭笎鐏粷浜嗐傛渶...
绛旓細鍙h厰涓婄毊缁嗚優鐨勪复鏃惰鐗 鍏蜂綋瀹為獙鏄繖鏍锋淮锛侊紒锛佹湜閲囩撼锛佽瀵熷彛鑵斾笂鐨粏鑳炲疄楠屼腑锛屽浣曟纭埉鍙栨墠鑳戒繚璇佹湁涓婄毊缁嗚優锛1.1 鍒朵綔銆佽瀵熶汉浣撳彛鑵斾笂鐨粏鑳炰复鏃惰鐗囧疄楠屾晥鏋滀笉鏄庢樉鐨勫師鍥 鈶犲疄楠屾椂瀛︾敓涓嶈兘鎶婄粏鑳炲緢濂藉彇涓嬫潵銆備功涓婅姹傚疄楠屽墠鐢ㄦ竻姘存急鍙o紝娓呴櫎鍙h厰涓鐗╃灞戙傜敤娑堟瘨鐗欑绮楃殑涓绔湪鍙h厰渚у涓婅交杞诲埉...
绛旓細20. 鍦鍒朵綔浜轰綋鍙h厰涓婄毊缁嗚優瑁呯墖鏃,姝g‘鐨勬搷浣滈『搴忔槸鈥︹︹( ) A.婕卞彛鈥斿埉鍙栤旀秱鐗団旂洊鐗団旀煋鑹 B.婕卞彛鈥旀秱鐗団斿埉鍙栤旀煋鑹测旂洊鐗 C.娑傜墖鈥旀急鍙b斿埉鍙栤旂洊鐗団旀煋鑹 D.娑傜墖鈥斿埉鍙栤旀急鍙b旀煋鑹测旂洊鐗囧緱鍒 璇勫嵎浜轰簩銆佺畝绛旈1.鍙冲浘涓轰汉浣撴煇涓郴缁熺殑缁撴瀯绀烘剰鍥,璇锋嵁鍥惧垎鏋:(1)璇ョ粨鏋勫浘琛ㄧず浜轰綋鐨 绯荤粺,...
绛旓細銆婂姩鐗╃粏鑳炪嬭繖涓绔犺妭锛屾棬鍦ㄥ紩瀵煎鐢熺悊瑙g粏鑳炲湪鐢熺墿浣撲腑鐨勬牳蹇冧綔鐢紝鐩爣鏄庣‘锛氶氳繃鍒朵綔鍙h厰涓婄毊缁嗚優瑁呯墖锛岃瀵熷拰杈ㄨ瘑缁嗚優缁撴瀯锛屾帉鎻″姩妞嶇墿缁嗚優鐨勬瘮杈冿紝鍩瑰吇缁嗚嚧瑙傚療鍜屽疄浜嬫眰鏄殑绉戝绮剧銆傚叾涓紝鍒朵綔涓存椂瑁呯墖鍜岃瘑鍒粏鑳炲紓鍚屾槸鏁欏閲嶅ご鎴忥紝鑰屽埗浣滃彛鑵斾笂鐨粏鑳炶鐗囧垯鏄鐢鍙兘闈复鐨勬寫鎴樸傝嚜涓诲涔犵殑瀹炶返</ 棣栧厛锛...