Papers by Samantha Lazarowicz
Journal of Introductory Biology Investigations, 2016
Yeast has been used to aid in baking and the production of food for centuries (Stoll et. al. 2015... more Yeast has been used to aid in baking and the production of food for centuries (Stoll et. al. 2015). Yeast uses sugars in order to produce carbon dioxide, ethanol, and glycerol (Stoll et. al. 2015). The idea behind the experiment was to find the most effective combination of treatments that produces the highest levels of ethanol. The study tested the hypothesis that a higher salt concentration and higher water temperature would yield more ethanol from the yeast. The results do not completely support our hypothesis, as the experiment with the lowest concentration of salt and highest temperature is what yielded the largest amount of ethanol.
Allelopathy is the suppression of growth of one plant species by another. 1 Many plants release a... more Allelopathy is the suppression of growth of one plant species by another. 1 Many plants release allelochemicals to ensure their survival. The Black W alnut ( Juglans nigra ) is the most notorious of allelopathic trees. 2 Juglone is the allelopathic chemical that inhibits germination or growth in plants. Juglone becomes the most toxic when it is exposed to air. 3 As rain washes juglone from leaves and other plant material it builds up in the soil where the neighboring plants then absorb the allelopathic chemical. Because allelopathic chemicals might strongly reduce the germination success rate in some plants, the extraction of julone from the Black Walnut might be useful as a natural herbicide for agricultural plants. 1
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Papers by Samantha Lazarowicz