Essays on Yeasts

Vid30 complex participation in the degradation of CDC25 in yeast and their role in Ras/ cAMP/ PKA pathway

Background: Unicellular organisms such as Saccharomyces cerevisiae in its total life cycle is exposed to diverse and changing nutrient conditions. Thus, in order to survive and achieve a competitive advantage, it has adapted itself such that it not only uses the wide range of available nutrient sources but also the sources that are nutrient rich. It mainly uses fructose and glucose by rapidly fermenting to alcohol. In response to these nutrient conditions, the intracellular trafficking transcription and turnover of protein from nutrient transporters (e.g. Hxts) get regulated. Therefore, when the availability of the glucose increases, the expression of low- ...

In the present assignment we are to answer the question on whether yeast needs air to make bread rise. First off, we need to come up with a hypothesis, and we believe that it does for it is a metabolism process which may not take place without air. Now let us see whether we are right in our assumption or not. Actually, we are and that is why. It is well known that yeast brings about fermentation processes - we ourselves have proven it experimentally. Yeast takes part in this fermentation process due to its interaction with such components ...

In Tissenbaum and Guarente's research study, they concluded that increasing the dosage of a SIR2 gene is associated with extended lifespan of roundworms, Caenorhabditis elegans (Tissenbaum & Guarente 228). To easily understand their research study, let us discuss a little background abound longevity of C. elegans. In 1997, a research study headed by Kimura, Tissenbaum, Liu and Ruvkun found the gene that potentially regulates the longevity and diapause in Caenorhabditis elegans. In C. elegans, their life cycle after the initial larval stage can proceed to two different stages: either the reproductive stage, or the dauer diapause stage (Hu). In their ...