BIOL 125 Chapter Notes - Chapter 7: Meristem, Plasmodesma, Aquaporin

• School: UBC Okanagan, UBC OK
• Department: Biology
• Course: BIOL 125
• Professor: Matthew Nelson

Document Summary

-> three routes to get through root cortex and xylem. Has a cell wall, porous and the spaces that are present in between the cells. The name is derived from the fact that movement takes place outside the plasma membrane and cell interior: si(cid:373)plisti(cid:272) (cid:396)oute (with the pa(cid:396)ti(cid:272)le (path(cid:449)ay (cid:272)o(cid:374)sists of the (cid:272)o(cid:374)(cid:374)e(cid:272)tio(cid:374) that"s p(cid:396)ese(cid:374)t i(cid:374) (cid:271)et(cid:449)ee(cid:374) the plasmodesmata. Summary: water ca(cid:374) flo(cid:449) th(cid:396)ough (cid:448)ia a(cid:395)uapo(cid:396)i(cid:374)"s, a(cid:396)ou(cid:374)d (cid:272)ells o(cid:396) th(cid:396)ough (cid:272)ells (cid:448)ia plasmodesmata. Primary growth - > extends the plant body. Apical meristems: located at the tip of each root and shoot. As the cells in the apical meristem divide, enlarge, and differentiate, root and shoot tips extend the plant outwards which ultimately extends the plant body. Therefore: primary growth is technically when cells that are derived from apical meristems divide, they form the primary plant body.