Chap 19
Terms
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- Diffusion
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when 2 gasses o liquid are mixed, the molecules from the liquid of high concentration will move to the egion of low concentration.
- Osmosis
- The water molecules in the low concentration solution pass through the semi-permeable membane to the high concentration solution.
- cambium
- The vascular bundles in dicotyledonous plants form a ring inside,and is between phloem and xylem.
- Soil-_____-epidermis-cortex-______ - xylem
- root hair, endodermis
- The transparent of water up the stem to the leaf
- a)root presure b)capillary action c) Transpiration pull
- transpiration
- The loss of water from the plant to the atmosphere through stomata.
- The function of thranspiration
- 1)to remove excess water 2)to cool down the plant 3)to supply mineral salts
- Water diffuses into the mesophyll cells until become ____.
- turgid
- Root hair-_____-stem vessel-_____- mesophyll cells-intercellular gap-_____-stomata-outside the leaf
- root vessel, xylem cells in veins,air chamber
- Factors affecting transpiration
- 1)temperature 2)humudity 3)wind 4)light 5)atmospheric pressure