prova 01 bioquímica
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Prof. LorranaCurso:
Técnico em QuímicaPeríodo: 2º Data:22/08/2014
Aluno: Vale: 4,0 Nota:______
Avaliação nº01(N1)
Instruções para a realização da prova: Responder as questões à caneta na folha de rascunho.
01) Cite quatro propriedades físico-químicas da água e explique a sua importância nos sistemas bioquímicos. (1,0 ponto)________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
02) Quais são as principais características que diferem os seres vivos dos seres não vivos. Explique. (0,5 ponto)____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
03) Defina o que são aminoácidos e proteínas e cite exemplos. (0,5 ponto)________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
04) Considerando a classificação dos aminoácidos de acordo com a natureza do grupo da cadeia lateral, identifique quais os aminoácidos a seguir são apolares ou polares ácidos, básicos ou neutros. (1,0 ponto)
____________________ ____________________ ____________________
Ácido aspártico Alanina Histidina
06) A glicina apresenta três formas de ionização, mostradas na figura abaixo. Explique como ocorre o processo de titulação deste aminoácido com o NaOH, a partir do pH=1,0. (1,0 ponto)
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