{"common":{"save":0,"post_id":"9240","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7383","post_id":"9240","mon_id":"1159850","chapter_id":"1160021","question":"<p data-pm-slice=\"0 0 []\">Lông hút \u1edf r\u1ec5 do t\u1ebf bào nào phát tri\u1ec3n thành?<\/p>","options":["A. T\u1ebf bào m\u1ea1ch g\u1ed7 \u1edf r\u1ec5","B. T\u1ebf bào m\u1ea1ch cây \u1edf r\u1ec5","C. T\u1ebf bào n\u1ed9i bì","D. T\u1ebf bào bi\u1ec3u bì"],"correct":"4","level":"2","hint":"","answer":"<p>\u0110áp án \u0111úng: <strong>D. T\u1ebf bào bi\u1ec3u bì<\/strong><\/p><p data-end=\"291\" data-start=\"36\"><strong data-end=\"66\" data-start=\"54\">Lông hút<\/strong> là nh\u1eefng t\u1ebf bào hình \u1ed1ng nh\u1ecf, dài, \u0111\u01b0\u1ee3c phát tri\u1ec3n t\u1eeb <strong data-end=\"146\" data-start=\"121\">t\u1ebf bào bi\u1ec3u bì c\u1ee7a r\u1ec5<\/strong>. Chúng có vai trò <strong data-end=\"196\" data-start=\"165\">h\u1ea5p th\u1ee5 n\u01b0\u1edbc và mu\u1ed1i khoáng<\/strong> t\u1eeb \u0111\u1ea5t, làm t\u0103ng di\u1ec7n tích ti\u1ebfp xúc gi\u1eefa r\u1ec5 và môi tr\u01b0\u1eddng.<br data-end=\"258\" data-start=\"255\" \/>Các ph\u01b0\u01a1ng án A, B, C \u0111\u1ec1u sai vì:<\/p><p data-end=\"346\" data-start=\"294\">M\u1ea1ch g\u1ed7 và m\u1ea1ch rây là mô d\u1eabn, không t\u1ea1o lông hút.<\/p><p data-end=\"424\" data-start=\"349\">T\u1ebf bào n\u1ed9i bì n\u1eb1m sâu bên trong r\u1ec5, không có ch\u1ee9c n\u0103ng hình thành lông hút.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-05-13 10:14:16","option_type":"txt","len":2},{"id":"7384","post_id":"9240","mon_id":"1159850","chapter_id":"1160021","question":"<p data-pm-slice=\"0 0 []\">Ngu\u1ed3n nito cung c\u1ea5p ch\u1ee7 y\u1ebfu cho cây là:<\/p>","options":["A. t\u1eeb xác \u0111\u1ed9ng v\u1eadt và quá trình c\u1ed1 \u0111\u1ecbnh \u0111\u1ea1m","B. t\u1eeb phân bón hóa h\u1ecdc","C. t\u1eeb vi khu\u1ea9n ph\u1ea3n nitrat hóa","D. t\u1eeb khí quy\u1ec3n"],"correct":"1","level":"2","hint":"","answer":"<p>\u0110áp án \u0111úng:<strong> A. t\u1eeb xác \u0111\u1ed9ng v\u1eadt và quá trình c\u1ed1 \u0111\u1ecbnh \u0111\u1ea1m<\/strong><\/p><p data-end=\"131\" data-start=\"88\">Ngu\u1ed3n cung c\u1ea5p <strong data-end=\"127\" data-start=\"103\">nit\u01a1 ch\u1ee7 y\u1ebfu cho cây<\/strong> là:<\/p><p data-end=\"285\" data-start=\"135\"><strong data-end=\"159\" data-start=\"135\">Ch\u1ea5t h\u1eefu c\u01a1 phân h\u1ee7y<\/strong> t\u1eeb <strong data-end=\"194\" data-start=\"163\">xác \u0111\u1ed9ng th\u1ef1c v\u1eadt, \u0111\u1ed9ng v\u1eadt<\/strong> trong \u0111\u1ea5t → chuy\u1ec3n thành <strong data-end=\"242\" data-start=\"220\">d\u1ea1ng nitrat (NO\u2083\u207b)<\/strong> ho\u1eb7c <strong data-end=\"264\" data-start=\"248\">amoni (NH\u2084\u207a)<\/strong> mà cây h\u1ea5p th\u1ee5 \u0111\u01b0\u1ee3c.<\/p><p data-end=\"426\" data-start=\"288\"><strong data-end=\"313\" data-start=\"288\">Quá trình c\u1ed1 \u0111\u1ecbnh \u0111\u1ea1m<\/strong>: Vi khu\u1ea9n c\u1ed1 \u0111\u1ecbnh \u0111\u1ea1m (nh\u01b0 <strong data-end=\"354\" data-start=\"341\">Rhizobium<\/strong>) chuy\u1ec3n <strong data-end=\"384\" data-start=\"363\">nit\u01a1 phân t\u1eed (N\u2082)<\/strong> t\u1eeb khí quy\u1ec3n thành d\u1ea1ng cây s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-05-13 10:15:28","option_type":"txt","len":3},{"id":"7385","post_id":"9240","mon_id":"1159850","chapter_id":"1160021","question":"<p data-pm-slice=\"0 0 []\">Khi nói v\u1ec1 s\u1ef1 h\u1ea5p thu th\u1ee5 \u0111\u1ed9ng các ion khoáng \u1edf r\u1ec5, phát bi\u1ec3u nào sau \u0111ây là sai?<\/p>","options":["A. Các ion khoáng hòa tan trong n\u01b0\u1edbc và vào r\u1ec5 theo dòng n\u01b0\u1edbc","B. Các ion khoáng hút bám trên b\u1ec1 m\u1eb7t c\u1ee7a keo \u0111\u1ea5t và trên b\u1ec1 m\u1eb7t r\u1ec5 trao \u0111\u1ed5i v\u1edbi nhau khi có s\u1ef1 ti\u1ebfp xúc gi\u1eefa r\u1ec5 và dung d\u1ecbch \u0111\u1ea5t (hút bám trao \u0111\u1ed5i)","C. Các ion khoáng th\u1ea9m th\u1ea5u theo s\u1ef1 chênh l\u1ec7ch n\u1ed3ng \u0111\u1ed9 t\u1eeb cao \u0111\u1ebfn th\u1ea5p","D. Các ion khoáng khu\u1ebfch tán theo s\u1ef1 chênh l\u1ec7ch n\u1ed3ng \u0111\u1ed9 t\u1eeb cao \u0111\u1ebfn th\u1ea5p"],"correct":"4","level":"2","hint":"","answer":"<p>\u0110áp án \u0111úng: <strong>D. Các ion khoáng khu\u1ebfch tán theo s\u1ef1 chênh l\u1ec7ch n\u1ed3ng \u0111\u1ed9 t\u1eeb cao \u0111\u1ebfn th\u1ea5p<\/strong><\/p><p data-end=\"231\" data-start=\"133\"><strong data-end=\"146\" data-start=\"133\">Th\u1ea9m th\u1ea5u<\/strong> là quá trình <strong data-end=\"196\" data-start=\"160\">n\u01b0\u1edbc di chuy\u1ec3n qua màng bán th\u1ea5m<\/strong>, không áp d\u1ee5ng cho <strong data-end=\"230\" data-start=\"216\">ion khoáng<\/strong>.<\/p><p data-end=\"361\" data-start=\"234\"><strong data-end=\"266\" data-start=\"234\">Ion khoáng không "th\u1ea9m th\u1ea5u"<\/strong>, mà chúng <strong data-end=\"291\" data-start=\"277\">khu\u1ebfch tán<\/strong> ho\u1eb7c <strong data-end=\"316\" data-start=\"297\">\u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n<\/strong> qua màng b\u1eb1ng c\u01a1 ch\u1ebf th\u1ee5 \u0111\u1ed9ng ho\u1eb7c ch\u1ee7 \u0111\u1ed9ng.<\/p><p data-end=\"431\" data-start=\"364\">Vì v\u1eady, nói <strong data-end=\"400\" data-start=\"376\">ion khoáng th\u1ea9m th\u1ea5u<\/strong> là <strong data-end=\"430\" data-start=\"404\">sai v\u1ec1 m\u1eb7t sinh lý h\u1ecdc<\/strong>.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-05-13 10:16:28","option_type":"txt","len":3}]}