https://padlet.com/ccasu13/n1nbab0eziyy esperimento biologia en-us 2018-05-11 18:28:14 UTC 2025-11-04 23:09:49 UTC hello@padlet.com ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265058102                                 I LIPIDI
si definiscono per la caratteristica di essere insolubili in acqua e solubili in sostanze apolari]]> 2018-06-01 15:42:36 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265058102 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265058455 sono biomolecole che a parità di peso liberano una grande quantità di energia]]> 2018-06-01 15:44:20 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265058455 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265058741 questa caratteristica è utile per individuare la loro presenza negli alimenti
riconoscimento dei lipidi negli alimenti]]> 2018-06-01 15:45:34 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265058741 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265059106 -portaprovette
-provette
-imbuto
-carta filtro


]]> 2018-06-01 15:47:10 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265059106 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265060381 2018-06-01 15:53:59 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265060381 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265060604 2018-06-01 15:54:46 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265060604 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265060786 2018-06-01 15:55:56 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265060786 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265061171 2018-06-01 15:57:56 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265061171 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265062275 nella prima provetta mettiamo una piccola quantità di olio, nella seconda una piccola quantità di zucchero e aggiungiamo alcuni ml di alcol,agitiamo]]> 2018-06-01 16:04:02 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265062275 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265062827 Prepariamo un filtro dentro all'imbuto e filtriamo i due preparati in due provette vuote]]> 2018-06-01 16:07:18 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265062827 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265063278 Aggiungiamo all'alcol filtrato una quantità di acqua, se nell'alimento erano presenti dei lipidi  la soluzione dovrebbe intorbidirsi]]> 2018-06-01 16:09:56 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265063278 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105206 2018-06-01 20:37:55 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105206 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105286 2018-06-01 20:39:06 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105286 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105428 2018-06-01 20:41:29 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105428 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105529 2018-06-01 20:42:40 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105529 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105901 2018-06-01 20:46:50 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265105901 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265106040 2018-06-01 20:48:34 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265106040 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265106577 Questo accade perchè  mescolando il campione con alcol,un solvente meno polare dell'acqua, una parte dei lipidi si scioglie in esso. Filtrando separiamo la parte solida che non si  è sciolta dalla parte disciolta nell'alcol. Quando aggiungiamo l'acqua, essa aumenta la polarità  della soluzione e i lipidi, eventualmente presenti passano alla fase solida determinando un'intorbimento della soluzione]]> 2018-06-01 20:55:25 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265106577 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265158316 -acqua distillata
-alcol etilico o etanolo
-olio
-zucchero]]> 2018-06-02 16:04:28 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265158316 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265158471 2018-06-02 16:07:35 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265158471 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159200 2018-06-02 16:22:51 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159200 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159308 2018-06-02 16:24:01 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159308 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159351 2018-06-02 16:24:57 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159351 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159388 2018-06-02 16:25:38 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159388 ccasu13 https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159430 2018-06-02 16:26:39 UTC https://padlet.com/ccasu13/n1nbab0eziyy/wish/265159430