{"common":{"save":0,"post_id":"9843","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8584","post_id":"9843","mon_id":"1159850","chapter_id":"1160280","question":"<p data-pm-slice=\"0 0 []\">C\u01a1 s\u1edf khoa h\u1ecdc c\u1ee7a s\u1ef1 u\u1ed1n cong cành cây trong tính h\u01b0\u1edbng ti\u1ebfp xúc là do<\/p>","options":["A. s\u1ef1 sinh tr\u01b0\u1edfng không \u0111\u1ec1u c\u1ee7a hai phía c\u01a1 quan, các t\u1ebf bào t\u1ea1i phía không \u0111\u01b0\u1ee3c ti\u1ebfp xúc sinh tr\u01b0\u1edfng nhanh h\u01a1n làm cho c\u01a1 quan u\u1ed1n cong v\u1ec1 phía ti\u1ebfp xúc.","B. s\u1ef1 sinh tr\u01b0\u1edfng \u0111\u1ec1u c\u1ee7a hai phi\u0301a c\u01a1 quan, ca\u0301c t\u1ebf bào t\u1ea1i phía không \u0111\u01b0\u1ee3c ti\u1ebfp xúc sinh tr\u01b0\u1edfng nhanh h\u01a1n làm cho c\u01a1 quan u\u1ed1n cong v\u1ec1 phía ti\u1ebfp xúc.","C. s\u1ef1 sinh tr\u01b0\u1edfng không \u0111\u1ec1u c\u1ee7a hai phía c\u01a1 quan, các t\u1ebf bào t\u1ea1i phía \u0111\u01b0\u1ee3c ti\u1ebfp xúc sinh tr\u01b0\u1edfng nhanh h\u01a1n làm cho c\u01a1 quan u\u1ed1n cong v\u1ec1 phía ti\u1ebfp xúc. ","D. s\u1ef1 sinh tr\u01b0\u1edfng không \u0111\u1ec1u c\u1ee7a hai phía c\u01a1 quan, các t\u1ebf bào t\u1ea1i phía không \u0111\u01b0\u1ee3c ti\u1ebfp xúc sinh tr\u01b0\u1edfng ch\u1eadm h\u01a1n làm cho c\u01a1 quan u\u1ed1n cong v\u1ec1 phía ti\u1ebfp xúc."],"correct":"1","level":"2","hint":"<p>Liên quan \u0111\u1ebfn tác \u0111\u1ed9ng c\u1ee7a môi tr\u01b0\u1eddng lên mô sinh tr\u01b0\u1edfng c\u1ee7a cành cây<\/p>","answer":"<p>\u0110áp án: <span style=\"color:#16a085;\"><strong>A. s\u1ef1 sinh tr\u01b0\u1edfng không \u0111\u1ec1u c\u1ee7a hai phía c\u01a1 quan, các t\u1ebf bào t\u1ea1i phía không \u0111\u01b0\u1ee3c ti\u1ebfp xúc sinh tr\u01b0\u1edfng nhanh h\u01a1n làm cho c\u01a1 quan u\u1ed1n cong v\u1ec1 phía ti\u1ebfp xúc.<\/strong><\/span><\/p><p>Trong <strong data-end=\"72\" data-is-only-node=\"\" data-start=\"49\">tính h\u01b0\u1edbng ti\u1ebfp xúc<\/strong> (thigmotropism), khi m\u1ed9t c\u01a1 quan c\u1ee7a cây ti\u1ebfp xúc v\u1edbi v\u1eadt th\u1ec3 (ví d\u1ee5: tua cu\u1ed1n ti\u1ebfp xúc v\u1edbi c\u1ecdc), phía <strong data-end=\"194\" data-start=\"176\">không ti\u1ebfp xúc<\/strong> s\u1ebd <strong data-end=\"223\" data-start=\"198\">sinh tr\u01b0\u1edfng nhanh h\u01a1n<\/strong> phía ti\u1ebfp xúc.<br data-end=\"241\" data-start=\"238\" \/>→ Do s\u1ef1 sinh tr\u01b0\u1edfng <strong data-end=\"274\" data-start=\"261\">không \u0111\u1ec1u<\/strong> này, c\u01a1 quan b\u1ecb u\u1ed1n cong <strong data-end=\"323\" data-start=\"300\">v\u1ec1 phía có ti\u1ebfp xúc<\/strong>.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-08-05 15:38:35","option_type":"txt","len":3},{"id":"8585","post_id":"9843","mon_id":"1159850","chapter_id":"1160280","question":"<p data-pm-slice=\"0 0 []\">C\u1ea3m \u1ee9ng \u1edf \u0111\u1ed9ng v\u1eadt...?<\/p>","options":["A. Di\u1ec5n ra nhanh, d\u1ec5 nh\u1eadn ra","B. Di\u1ec5n ra nhanh, khó nh\u1eadn ra","C. Di\u1ec5n ra ch\u1eadm, khó nh\u1eadn ra ","D. Di\u1ec5n ra ch\u1eadm, d\u1ec5 nh\u1eadn ra"],"correct":"1","level":"2","hint":"<p>Là kh\u1ea3 n\u0103ng nh\u1eadn bi\u1ebft và ph\u1ea3n \u1ee9ng v\u1edbi kích thích bên ngoài và bên trong.<\/p>","answer":"<p>\u0110áp án: <span style=\"color:#16a085;\"><strong>A. Di\u1ec5n ra nhanh, d\u1ec5 nh\u1eadn ra<\/strong><\/span><\/p><ul> <li data-end=\"216\" data-start=\"71\"><p data-end=\"216\" data-start=\"73\">\u1ede \u0111\u1ed9ng v\u1eadt, c\u1ea3m \u1ee9ng th\u01b0\u1eddng liên quan \u0111\u1ebfn <strong data-end=\"150\" data-start=\"114\">h\u1ec7 th\u1ea7n kinh và c\u01a1 quan v\u1eadn \u0111\u1ed9ng<\/strong> → truy\u1ec1n tín hi\u1ec7u nhanh → ph\u1ea3n \u1ee9ng x\u1ea3y ra g\u1ea7n nh\u01b0 ngay l\u1eadp t\u1ee9c.<\/p><\/li> <li data-end=\"282\" data-start=\"217\"><p data-end=\"282\" data-start=\"219\">Ví d\u1ee5: R\u1ee5t tay khi ch\u1ea1m vào v\u1eadt nóng, ch\u1ea1y khi g\u1eb7p nguy hi\u1ec3m.<\/p><\/li><\/ul>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-08-05 15:39:39","option_type":"txt","len":2},{"id":"8586","post_id":"9843","mon_id":"1159850","chapter_id":"1160280","question":"<p data-pm-slice=\"0 0 []\">\u0110\u0103\u0323c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a các hình th\u1ee9c c\u1ea3m \u1ee9ng \u1edf \u0111\u1ed9ng v\u1eadt là:<\/p>","options":["A. ch\u1ec9 di\u1ec5n ra \u0111\u01a1n \u0111i\u1ec7u, ch\u1ee7 y\u1ebfu b\u1eb1ng v\u1eadn \u0111\u1ed9ng","B. hình th\u1ee9c ph\u1ea3n \u1ee9ng \u0111a d\u1ea1ng","C. ch\u1ec9 di\u1ec5n ra ch\u1eadm ch\u1ea1p, ít bi\u1ebfn \u0111\u1ed5i","D. không có h\u1ec7 th\u1ea7n kinh \u0111i\u1ec1u khi\u1ec3n"],"correct":"2","level":"2","hint":"<p>C\u1ea3m \u1ee9ng \u1edf \u0111\u1ed9ng v\u1eadt là ph\u1ea3n \u1ee9ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u1edd h\u1ec7 th\u1ea7n kinh và giác quan, càng ti\u1ebfn hóa thì càng ph\u1ee9c t\u1ea1p và chính xác.<\/p>","answer":"<p>\u0110áp án: <span style=\"color:#16a085;\"><strong>B. hình th\u1ee9c ph\u1ea3n \u1ee9ng \u0111a d\u1ea1ng.<\/strong><\/span><\/p><p>\u1ede \u0111\u1ed9ng v\u1eadt, c\u1ea3m \u1ee9ng không ch\u1ec9 di\u1ec5n ra nhanh mà còn <strong>\u0111a d\u1ea1ng v\u1ec1 hình th\u1ee9c<\/strong>: v\u1eadn \u0111\u1ed9ng, thay \u0111\u1ed5i màu s\u1eafc, phát âm thanh, ti\u1ebft ch\u1ea5t…<\/p><p>S\u1ef1 \u0111a d\u1ea1ng này là do h\u1ec7 th\u1ea7n kinh và giác quan phát tri\u1ec3n, cho phép \u0111\u1ed9ng v\u1eadt ph\u1ea3n \u1ee9ng linh ho\u1ea1t v\u1edbi nhi\u1ec1u lo\u1ea1i kích thích khác nhau.<\/p>","type":"choose","extra_type":"classic","user_id":"139","test":"0","date":"2025-08-05 15:45:35","option_type":"txt","len":2}]}