testo - Istituto Romano Bruni
annuncio pubblicitario
LiceoScientificoParitario“R.Bruni” Padova,loc.PontediBrenta,26/04/2017-AS2016/2017 simulazioneIIIProva–Scienzenaturali ClasseVsez.U Cognomeenome______________________________ 1. Maltosioecellobiosiosonoduedisaccaridichederivanodallaparzialescomposizionediamidoe cellulosa.Riportaleformuledistrutturadeimonomerichelicompongonomettendoinevidenzaleloro differenzestrutturali.Comequestosievidenziapoinellastrutturadeidisaccaridi?Checonseguenze puòaverequestadifferenza? _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 2. L’emoglobinaèunaproteinaconiugataastrutturaquaternaria.Spiegaquestaaffermazioneindicando inoltrelafunzionedellamolecolaall’internodelcorpoumano. _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 3. La variazione della temperatura atmosferica nell’ultimo secolo sembra avere una relazione ormai confermataconlaproduzionedigasserralegatialleattivitàantropiche;allostessotempolevariazioni delle condizioni climatiche nel corso delle ere geologiche sono spiegabili anche con cause naturali. Riporta almeno un paio di fenomeni che possano avere una connessione con la variazione di temperaturaespiegali. _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________
