Muhiimadda sagxadaha is-weydaarsiga iyo nidaamyada gaadiidka ee dhirta
Cashar 7 / 9
Muuqaalka casharka
Muuqaalku weli diyaar ma aha.
Bogagga casharka
weli lama diyaarin
Faahfaahinta casharka
Natiijada casharka
I can explain how exchange surfaces and transport systems enable cells in multicellular plants to be supplied quickly with substances they need to stay alive.
Muuji qoraalka
Cells in all parts of a multicellular plant need water and nutrients, such as mineral ions, to stay alive.
Xylem and phloem transport substances around the plant and minimise the distance they have to diffuse to reach cells.
Root hair cells are an example of an exchange surface in plants.
The root hair cell membrane is adapted to maximise the surface area for osmosis of water and active transport of ions.
Warqadda shaqada
weli lama diyaarin
Imtixaannada
Imtixaankan weli diyaar ma aha.
Waxa ardaydu arkaan
Tan waa isla casharka sida ardaygu u arko. Waxaad qayb kasta u dirsan kartaa ardayda.
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Nuxurkan waxaa leh Cashar, waxaana lagu daabacay shatiga furan.