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Advisor(s)
Abstract(s)
Os organismos vivos obtêm energia degradando moléculas orgânicas através da
respiração celular. Esse processo pode ocorrer com ou sem consumo de oxigénio. Em
muitos seres vivos com células complexas, a respiração celular ocorre com consumo de
oxigénio pelo que se designa de respiração aeróbia. O consumo de oxigénio pode ser
observado utilizando uma substância indicadora de presença/ausência de O2. O indicador
utilizado neste experiencia foi o azul-de-metileno que muda de cor conforme está na
forma reduzida ou na forma oxidada. Os resultados mostram que ocorreu a redução do
azul-de-metileno, o que significa que o oxigénio foi consumido.
O objetivo desta atividade é observar a mobilização de energia em bivalves (Scrobicularria
plana) vulgarmente chamada de Lambujinha através do consumo de O2.
Living organisms obtain energy by degrading organic molecules (cellular respiration). This process there is a consumption of oxygen which is known by aerobic respiration. Oxygen consumption can be observed busing substances that indicate the presence / absence of O2. The indicator that was used in this experiment is the methylene blue which changes colour as it is in its reduced form or oxidized. The results show a reduction of the methylene blue, which means that the oxygen has been consumed. The purpose of this activity is to observe the energy mobilization in bivalves (Scrobicularria plana) commonly called Lambujinha through the consumption of O2.
Living organisms obtain energy by degrading organic molecules (cellular respiration). This process there is a consumption of oxygen which is known by aerobic respiration. Oxygen consumption can be observed busing substances that indicate the presence / absence of O2. The indicator that was used in this experiment is the methylene blue which changes colour as it is in its reduced form or oxidized. The results show a reduction of the methylene blue, which means that the oxygen has been consumed. The purpose of this activity is to observe the energy mobilization in bivalves (Scrobicularria plana) commonly called Lambujinha through the consumption of O2.
Description
Keywords
Respiração aeróbia Reações oxidação-redução
Citation
Macedo, Germana Sofia; Afonso, Cristiana; Marrão, Sandra Marina; Reis, Claudia; Pais, Stefan; Vaz, Maria da Anunciação P.L.M (2013). Consumo de oxigénio em bivalves = Oxygen consumption in bivalves. AdolesCiência: Revista Júnior de Investigação. ISSN 2182-6277. 2:1, p. 36-40
Publisher
Instituto Politécnico de Bragança, Escola Superior de Educação