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An investigation into how the activity of a population of yeast is affected with respect to temperature.
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| Submitted: Tue Oct 14 2003
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TITLE An investigation into how the activity of a population of yeast is affected with respect to temperature. INTRODUCTION Yeast cells also known as Saccharomyces Cerevisiae are unicellular organisms, which reproduce asexually requiring only one parent. The are seven major forms of asexual reproduction: binary fission, budding, fragmentation, sporulation, vegetative propagation, cloning and parthenogenesis. Yeast cells reproduce by budding. This is a very simple mechanism similar to binary fission, except that the two resultant cells are not of equal size but comprise a smaller bud cell, becoming detached from a larger parent cell. Yeast use oxygen to build membranes components that are essential to replication. These cell-wall building blocks (unsaturated fatty acids and sterols) can sustain yeast growth even when present at very low levels. In anaerobic respiration, when free oxygen is not present, hydrogen cannot be disposed of by combination with oxygen. The electron transfer chain therefore stops working and no further ATP is...
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