請問DESTARCHING 是什麼,,有咩作用,,
而VARIEGATED PLANTS 用黎做DESTARCHING TEST,,會有咩結果,,
點解,,?
f.2 science
2007-12-11 1:03 am
回答 (2)
2007-12-11 1:12 am
✔ 最佳答案
DESTARCHING 係一個將一棵植物內的澱粉質除去ge過程~VARIEGATED PLANTS DESTARCH左之後就會冇哂澱粉質,咁DESTARCHING TEST就會呈陰性結果,即係碘酒滴左落d VARIEGATED PLANTS之後會維持番啡色~(如果冇做DESTARCHING ge話..green果部分,碘酒會變藍黑色,而唔係green果部分,碘酒就會維持番啡色)
參考: my sience knowledge
2007-12-11 1:15 am
destarching即是把某樣物質內的澱粉分解
prefix: de 即係分解
suffix: starching 澱粉
VARIEGATED PLANTS能把DESTARCHING TEST內的iodine solution由啡變為深藍(唔g深藍定其他色,唔記得左,總之會變色)從而得知呢樣plant內contain starch(澱粉)
2007-12-10 17:17:13 補充：
冇destarch即係有starch,所以iodine solution會變色有destarch即係有stach,所以iodine solution不變色
prefix: de 即係分解
suffix: starching 澱粉
VARIEGATED PLANTS能把DESTARCHING TEST內的iodine solution由啡變為深藍(唔g深藍定其他色,唔記得左,總之會變色)從而得知呢樣plant內contain starch(澱粉)
2007-12-10 17:17:13 補充：
冇destarch即係有starch,所以iodine solution會變色有destarch即係有stach,所以iodine solution不變色
參考: 我的經驗 我舊年f.2做過相似的test
收錄日期: 2021-04-14 20:40:54
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