cac mien cua re

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  • 1. SINH HOC 6 TRNG TRUNG HC C S PHAN BI CHU

2. CHNG II:R Tit 9: CC LOI R, CC MIN CA R R gi cho cy mc c trn t.R ht nc v mui khong ho tan 1. Cc loi r: 3. 1. Quan st r cy. Kim tra cn thn cc r cy v phn loi chng thnh 2 nhm 2. Vit li nhng c im m cc em dng phn loi r cy thnh 2 nhm 3 .i chiu vi hnh v 9.1(SGK), xp loi r cy vo mt trong 2 nhm r cc hoc r chm Cc bc thc hin phn loi kiu r: A. R cc B. R chm 4. R ci R con Cy chanh Cy ng Cy rau dn Cy la Cy i R chm R cc Tn cy A. R cc B. R chm 5. Hy chn cc t thch hp ( r cc, r chm ) in vo ch trng cc cu sau: + C 2 loi r chnh..v .. + c r ci to kho, m su xung t v nhiu r con mc xin. T r con li mc ra cc r b hn na + gm nhiu r to, di bng nhau, thng to ra t gc thn thnh mt chm r chmr ccR ccR chmA. R cc B. R chm 6.

  • Cy c r cc:...........................................................
  • - Cy c r chm: ......................................................

Bi, ci, hng xim 1. Cy ti ty - 2. Cy bi-3. Cy ci-4. Cy m-5. Cy hng xim Ti ty, m 7. C my loi r chnh? l nhng loi no? 8. C 2 loi r chnh: R cc v r chm + R cc gm r ci v cc r con + R chm gm nhng r con mc t gc thn CHNG II:R Tit 9: CC LOI R, CC MIN CA R R gi cho cy mc c trn t.R ht nc v mui khong ho tan 1. Cc loi r: 9. Cy bn Cy a 10. 2. Cc min ca r: C 2 loi r chnh: R cc v r chm + R cc gm r ci v cc r con + R chm gm nhng r con mc t gc thn CHNG II:R Tit 9: CC LOI R, CC MIN CA R R gi cho cy mc c trn t.R ht nc v mui khong ho tan 1. Cc loi r: 11. Mintrng thnh Min ht Minsinh trng Min chp r Em hy ch thch cc min ca r 1 2 3 4 12. Hy ni ni dung ct A vi ct B sao cho ph hp d a b c d. Dn truyn c. Che ch cho u r b. Lm cho r di ra a. Hp th nc v mui khong Chc nng chnh ca tng min (B) 4-3-2-1-A -B 4. Min chp r 3. Min sinh trng 2. Min ht 1. Min trng thnh Cc min ca r (A) 13. R gm my min?Chc nng ca mi min? 14. +Min trng thnhc chc nng dn truyn R c 4 min +Min hthp th nc v mui khong +Min sinh trnglm cho r di ra +Min chp rche ch cho u r 2. Cc min ca r: C 2 loi r chnh: R cc v r chm + R cc gm r ci v cc r con + R chm gm nhng r con mc t gc thn CHNG II:R Tit 9: CC LOI R, CC MIN CA R R gi cho cy mc c trn t.R ht nc v mui khong ho tan 1. Cc loi r: 15. Cy bo ty 16. *Cng c: Hy nh duXvo vung u cu tr li ng: Trong nhng nhm cy sau, nhng nhm cy no gm ton cy c r cc: X X X X X X a)Cy xoi, cy t, cy u xanh, cy hoa hng b)Cy bi, cy c chua, cy hnh, cy ci c)Cy chanh, cy mt, cy u phng, cy i d)Cy da, cy hnh, cy la, cy ng 17. + V hnh 9.3 (SGK) Dn d: + Lm bi tp 1 trang 31 + Tm hiu cu to min ht ca r 18.