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Transport in Plant Notes Apr13 -1

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  󰀲󰀰󰀱󰀲   󰁐󰁲󰁥󰁰󰁡󰁲󰁥󰁤 󰁢󰁹 󰁍󰁳󰀮󰁎󰁧󰁯󰁯 󰁌󰁥󰁮󰁡   G TRANSPORT IN PLANTS Learning Outcomes Topic G (󰁡) 󰁥󰁸󰁰󰁬󰁡󰁩󰁮 󰁴󰁨󰁥 󰁮󰁥󰁥󰁤 󰁦󰁯󰁲 󰁴󰁲󰁡󰁮󰁳󰁰󰁯󰁲󰁴 󰁳󰁹󰁳󰁴󰁥󰁭󰁳 󰁩󰁮 󰁭󰁵󰁬󰁴󰁩󰁣󰁥󰁬󰁬󰁵󰁬󰁡󰁲 󰁰󰁬󰁡󰁮󰁴󰁳 󰁡󰁮󰁤 󰁡󰁮󰁩󰁭󰁡󰁬󰁳 󰁩󰁮 󰁴󰁥󰁲󰁭󰁳 󰁯󰁦 󰁳󰁩󰁺󰁥 󰁡󰁮󰁤 󰁳󰁵󰁲󰁦󰁡󰁣󰁥 󰁡󰁲󰁥󰁡 󰁴󰁯 󰁶󰁯󰁬󰁵󰁭󰁥 󰁲󰁡󰁴󰁩󰁯󰁳󰀻 (󰁢) 󰁤󰁥󰁦󰁩󰁮󰁥 󰁴󰁨󰁥 󰁴󰁥󰁲󰁭 󰁴󰁲󰁡󰁮󰁳󰁰󰁩󰁲󰁡󰁴󰁩󰁯󰁮 󰁡󰁮󰁤 󰁥󰁸󰁰󰁬󰁡󰁩󰁮 󰁴󰁨󰁡󰁴 󰁩󰁴 󰁩󰁳 󰁡󰁮 󰁩󰁮󰁥󰁶󰁩󰁴󰁡󰁢󰁬󰁥 󰁣󰁯󰁮󰁳󰁥󰁱󰁵󰁥󰁮󰁣󰁥 󰁯󰁦 󰁧󰁡󰁳󰁥󰁯󰁵󰁳 󰁥󰁸󰁣󰁨󰁡󰁮󰁧󰁥 󰁩󰁮 󰁰󰁬󰁡󰁮󰁴󰁳󰀻 (󰁣) *󰁤󰁥󰁳󰁣󰁲󰁩󰁢󰁥 󰁨󰁯󰁷 󰁴󰁯 󰁩󰁮󰁶󰁥󰁳󰁴󰁩󰁧󰁡󰁴󰁥 󰁥󰁸󰁰󰁥󰁲󰁩󰁭󰁥󰁮󰁴󰁡󰁬󰁬󰁹 󰁴󰁨󰁥 󰁦󰁡󰁣󰁴󰁯󰁲󰁳 󰁴󰁨󰁡󰁴 󰁡󰁦󰁦󰁥󰁣󰁴 󰁴󰁲󰁡󰁮󰁳󰁰󰁩󰁲󰁡󰁴󰁩󰁯󰁮 󰁲󰁡󰁴󰁥󰀻 (󰁤) *󰁤󰁥󰁳󰁣󰁲󰁩󰁢󰁥 󰁴󰁨󰁥 󰁤󰁩󰁳󰁴󰁲󰁩󰁢󰁵󰁴󰁩󰁯󰁮 󰁯󰁦 󰁸󰁹󰁬󰁥󰁭 󰁡󰁮󰁤 󰁰󰁨󰁬󰁯󰁥󰁭 󰁴󰁩󰁳󰁳󰁵󰁥 󰁩󰁮 󰁲󰁯󰁯󰁴󰁳, 󰁳󰁴󰁥󰁭󰁳 󰁡󰁮󰁤 󰁬󰁥󰁡󰁶󰁥󰁳 󰁯󰁦 󰁤󰁩󰁣󰁯󰁴󰁹󰁬󰁥󰁤󰁯󰁮󰁯󰁵󰁳 󰁰󰁬󰁡󰁮󰁴󰁳󰀻 (󰁥) *󰁤󰁥󰁳󰁣󰁲󰁩󰁢󰁥 󰁴󰁨󰁥 󰁳󰁴󰁲󰁵󰁣󰁴󰁵󰁲󰁥 󰁯󰁦 󰁸󰁹󰁬󰁥󰁭 󰁶󰁥󰁳󰁳󰁥󰁬 󰁥󰁬󰁥󰁭󰁥󰁮󰁴󰁳, 󰁳󰁩󰁥󰁶󰁥 󰁴󰁵󰁢󰁥 󰁥󰁬󰁥󰁭󰁥󰁮󰁴󰁳 󰁡󰁮󰁤 󰁣󰁯󰁭󰁰󰁡󰁮󰁩󰁯󰁮 󰁣󰁥󰁬󰁬󰁳 󰁡󰁮󰁤 󰁢󰁥 󰁡󰁢󰁬󰁥 󰁴󰁯 󰁲󰁥󰁣󰁯󰁧󰁮󰁩󰁳󰁥 󰁴󰁨󰁥󰁳󰁥 󰁵󰁳󰁩󰁮󰁧 󰁴󰁨󰁥 󰁬󰁩󰁧󰁨󰁴 󰁭󰁩󰁣󰁲󰁯󰁳󰁣󰁯󰁰󰁥󰀻 (󰁦) 󰁲󰁥󰁬󰁡󰁴󰁥 󰁴󰁨󰁥 󰁳󰁴󰁲󰁵󰁣󰁴󰁵󰁲󰁥 󰁯󰁦 󰁸󰁹󰁬󰁥󰁭 󰁶󰁥󰁳󰁳󰁥󰁬 󰁥󰁬󰁥󰁭󰁥󰁮󰁴󰁳, 󰁳󰁩󰁥󰁶󰁥 󰁴󰁵󰁢󰁥 󰁥󰁬󰁥󰁭󰁥󰁮󰁴󰁳 󰁡󰁮󰁤 󰁣󰁯󰁭󰁰󰁡󰁮󰁩󰁯󰁮 󰁣󰁥󰁬󰁬󰁳 󰁴󰁯 󰁴󰁨󰁥󰁩󰁲 󰁦󰁵󰁮󰁣󰁴󰁩󰁯󰁮󰁳󰀻 (󰁧) 󰁥󰁸󰁰󰁬󰁡󰁩󰁮 󰁴󰁨󰁥 󰁭󰁯󰁶󰁥󰁭󰁥󰁮󰁴 󰁯󰁦 󰁷󰁡󰁴󰁥󰁲 󰁢󰁥󰁴󰁷󰁥󰁥󰁮 󰁰󰁬󰁡󰁮󰁴 󰁣󰁥󰁬󰁬󰁳 󰁡󰁮󰁤 󰁢󰁥󰁴󰁷󰁥󰁥󰁮 󰁴󰁨󰁥󰁭 󰁡󰁮󰁤 󰁴󰁨󰁥󰁩󰁲 󰁥󰁮󰁶󰁩󰁲󰁯󰁮󰁭󰁥󰁮󰁴, 󰁩󰁮 󰁴󰁥󰁲󰁭󰁳 󰁯󰁦 󰁷󰁡󰁴󰁥󰁲 󰁰󰁯󰁴󰁥󰁮󰁴󰁩󰁡󰁬 (󰁮󰁯 󰁣󰁡󰁬󰁣󰁵󰁬󰁡󰁴󰁩󰁯󰁮󰁳 󰁩󰁮󰁶󰁯󰁬󰁶󰁩󰁮󰁧 󰁷󰁡󰁴󰁥󰁲 󰁰󰁯󰁴󰁥󰁮󰁴󰁩󰁡󰁬 󰁷󰁩󰁬󰁬 󰁢󰁥 󰁳󰁥󰁴)󰀻 (󰁨) 󰁤󰁥󰁳󰁣󰁲󰁩󰁢󰁥 󰁴󰁨󰁥 󰁰󰁡󰁴󰁨󰁷󰁡󰁹󰁳 󰁡󰁮󰁤 󰁥󰁸󰁰󰁬󰁡󰁩󰁮 󰁴󰁨󰁥 󰁭󰁥󰁣󰁨󰁡󰁮󰁩󰁳󰁭󰁳 󰁢󰁹 󰁷󰁨󰁩󰁣󰁨 󰁷󰁡󰁴󰁥󰁲 󰁩󰁳 󰁴󰁲󰁡󰁮󰁳󰁰󰁯󰁲󰁴󰁥󰁤 󰁦󰁲󰁯󰁭 󰁳󰁯󰁩󰁬 󰁴󰁯 󰁸󰁹󰁬󰁥󰁭 󰁡󰁮󰁤 󰁦󰁲󰁯󰁭 󰁲󰁯󰁯󰁴󰁳 󰁴󰁯 󰁬󰁥󰁡󰁶󰁥󰁳󰀻 (󰁩) *󰁤󰁥󰁳󰁣󰁲󰁩󰁢󰁥 󰁨󰁯󰁷 󰁴󰁨󰁥 󰁬󰁥󰁡󰁶󰁥󰁳 󰁯󰁦 󰁸󰁥󰁲󰁯󰁰󰁨󰁹󰁴󰁩󰁣 󰁰󰁬󰁡󰁮󰁴󰁳 󰁡󰁲󰁥 󰁡󰁤󰁡󰁰󰁴󰁥󰁤 󰁴󰁯 󰁲󰁥󰁤󰁵󰁣󰁥 󰁷󰁡󰁴󰁥󰁲 󰁬󰁯󰁳󰁳 󰁢󰁹 󰁴󰁲󰁡󰁮󰁳󰁰󰁩󰁲󰁡󰁴󰁩󰁯󰁮󰀻 (󰁪) 󰁥󰁸󰁰󰁬󰁡󰁩󰁮 󰁴󰁲󰁡󰁮󰁳󰁬󰁯󰁣󰁡󰁴󰁩󰁯󰁮 󰁡󰁳 󰁡󰁮 󰁥󰁮󰁥󰁲󰁧󰁹󰀭󰁲󰁥󰁱󰁵󰁩󰁲󰁩󰁮󰁧 󰁰󰁲󰁯󰁣󰁥󰁳󰁳 󰁴󰁲󰁡󰁮󰁳󰁰󰁯󰁲󰁴󰁩󰁮󰁧 󰁡󰁳󰁳󰁩󰁭󰁩󰁬󰁡󰁴󰁥󰁳, 󰁥󰁳󰁰󰁥󰁣󰁩󰁡󰁬󰁬󰁹 󰁳󰁵󰁣󰁲󰁯󰁳󰁥, 󰁢󰁥󰁴󰁷󰁥󰁥󰁮 󰁴󰁨󰁥 󰁬󰁥󰁡󰁶󰁥󰁳 (󰁳󰁯󰁵󰁲󰁣󰁥󰁳) 󰁡󰁮󰁤 󰁯󰁴󰁨󰁥󰁲 󰁰󰁡󰁲󰁴󰁳 󰁯󰁦 󰁴󰁨󰁥 󰁰󰁬󰁡󰁮󰁴 (󰁳󰁩󰁮󰁫󰁳)󰀻 (󰁫) 󰁥󰁸󰁰󰁬󰁡󰁩󰁮 󰁴󰁨󰁥 󰁴󰁲󰁡󰁮󰁳󰁬󰁯󰁣󰁡󰁴󰁩󰁯󰁮 󰁯󰁦 󰁳󰁵󰁣󰁲󰁯󰁳󰁥 󰁵󰁳󰁩󰁮󰁧 󰁴󰁨󰁥 󰁭󰁡󰁳󰁳 󰁦󰁬󰁯󰁷 󰁨󰁹󰁰󰁯󰁴󰁨󰁥󰁳󰁩󰁳󰀻  󰀲󰀰󰀱󰀲   󰁐󰁲󰁥󰁰󰁡󰁲󰁥󰁤 󰁢󰁹 󰁍󰁳󰀮󰁎󰁧󰁯󰁯 󰁌󰁥󰁮󰁡   Transport Systems in Plants Plants don’t have a circulatory system like animals, but they do have a sophisticated transport system for carrying water and dissolved solutes to different parts of the plant, often over large distances. Stem Structure epidermiscortexphloemcambiumxylempith v  a s  c  ul      ar   b   un d  l      e   ã   Epidermis. One cell thick. In young plants the epidermis cells may secrete a waterproof cuticle, and in older plants the epidermis may be absent, replaced  by bark. ã   Cortex. Composed of various “packing” cells, to give young plants strength and flexibility, and are the source of plant fibres such as sisal and hemp. ã   Vascular Tissue. This contains the phloem and xylem tissue, which grow out from the cambium. In dicot plants (the broad-leafed plants), the vascular tissue is arranged in vascular bundles, with phloem on the outside and xylem on the inside. In older plants the xylem bundles fuse together to form the bulk of the stem. ã   Pith. The central region of a stem, used for food storage in young plants. It may be absent in older  plants (i.e. they’re hollow). Root Structure epidermiscortexendodermispericyclephloemcambiumxylem v  a s  c  ul      ar   t    i      s  s  u e roothairs   ã   Epidermis. A single layer of cells often with long extensions called root hairs, which increase the surface area enormously. A single plant may have 10 10  root hairs. ã   Cortex. A thick layer of packing cells often containing stored starch. ã   Endodermis. A single layer of tightly-packed cells containing a waterproof layer called the casparian strip. This prevents the movement of water between the cells. cellwallcellmembrane cytoplasm vacuolecasparianstrip   ã   Pericycle. A layer of undifferentiated meristematic (growing) cells. ã   Vascular Tissue. This contains xylem and phloem cells, which are continuous with the stem vascular bundles. The arrangement is different, and the xylem usually forms a star shape with 2-6 arms.  󰀲󰀰󰀱󰀲   󰁐󰁲󰁥󰁰󰁡󰁲󰁥󰁤 󰁢󰁹 󰁍󰁳󰀮󰁎󰁧󰁯󰁯 󰁌󰁥󰁮󰁡   (a) Explain the need for transport systems in multicellular plants and animals in terms of size   and surface area to volume ratios 󰁅󰁘󰁐󰁌󰁁󰁉󰁎 󰁗󰁈󰁙 󰁴󰁨󰁥󰁲󰁥 󰁩󰁳 󰁡 󰁮󰁥󰁥󰁤 󰁦󰁯󰁲 󰁴󰁨󰁥 󰁤󰁥󰁶󰁥󰁬󰁯󰁰󰁭󰁥󰁮󰁴 󰁯󰁦 󰁴󰁲󰁡󰁮󰁳󰁰󰁯󰁲󰁴 󰁳󰁹󰁳󰁴󰁥󰁭 󰁦󰁯󰁲 󰁭󰁵󰁬󰁴󰁩󰁣󰁥󰁬󰁬󰁵󰁬󰁡󰁲 󰁯󰁲󰁧󰁡󰁮󰁩󰁳󰁭. 1) 2) (e) *describe the structure of xylem vessel elements, sieve tube elements and companion cells and be able to recognise these using the light microscope; 󰁘󰁙󰁌󰁅󰁍 󰁔󰁉󰁓󰁓󰁕󰁅 ã   󰁘󰁹󰁬󰁥󰁭 󰁴󰁩󰁳󰁳󰁵󰁥 󰁦󰁵󰁮󰁣󰁴󰁩󰁯󰁮󰁳 󰁩󰁮 󰁢󰁯󰁴󰁨 󰁷󰁡󰁴󰁥󰁲 󰁴󰁲󰁡󰁮󰁳󰁰󰁯󰁲󰁴 󰁡󰁮󰁤 󰁭󰁥󰁣󰁨󰁡󰁮󰁩󰁣󰁡󰁬 󰁳󰁵󰁰󰁰󰁯󰁲󰁴. ã   󰁔󰁨󰁥 󰁸󰁹󰁬󰁥󰁭 󰁯󰁦 󰁡 󰁦󰁬󰁯󰁷󰁥󰁲󰁩󰁮󰁧 󰁰󰁬󰁡󰁮󰁴 󰁩󰁳 󰁣󰁯󰁮󰁳󰁴󰁲󰁵󰁣󰁴󰁥󰁤 󰁦󰁲󰁯󰁭󰀺 󰁡) 󰁶󰁥󰁳󰁳󰁥󰁬 󰁥󰁬󰁥󰁭󰁥󰁮󰁴󰁳 󰁢) 󰁴󰁲󰁡󰁣󰁨󰁥󰁩󰁤󰁳 󰁣) 󰁦󰁩󰁢󰁲󰁥󰁳 󰁤) 󰁰󰁡󰁲󰁥󰁮󰁣󰁨󰁹󰁭󰁡 󰁣󰁥󰁬󰁬󰁳.  󰀲󰀰󰀱󰀲   󰁐󰁲󰁥󰁰󰁡󰁲󰁥󰁤 󰁢󰁹 󰁍󰁳󰀮󰁎󰁧󰁯󰁯 󰁌󰁥󰁮󰁡   (f) relate the structure of xylem vessel elements to their functions; Differences between Xylem vessel & tracheids 󰁴󰁲󰁡󰁣󰁨󰁥󰁩󰁤󰁳   󰁘󰁹󰁬󰁥󰁭 󰁶󰁥󰁳󰁳󰁥󰁬 󰁳󰁩󰁭󰁩󰁬󰁡󰁲󰁩󰁴󰁩󰁥󰁳    lignified walls at maturation; pits on wall ; Transport water 󰁄󰁩󰁦󰁦󰁥󰁲󰁥󰁮󰁣󰁥󰁳 󲀢   long, thin cells w tapered ends. 󲀢   Do not have open ends ,do not form vessels/ con’t tube 󲀢   elongated vessel elements arranged end-end/ no end walls 󲀢   form a continuous tube Hollow lumen Large lumen Lignified wall   Continuous tube/ no end wall Pits
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