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For a given reaction, G = -4 kcal/mole and the energy of activation for the uncatalyzed reaction = 5 kcal/mole. You add an enzyme, after which the activation energy falls to 3 kcal/mole. What is the energy of activation for the reverse reaction in the presence of the same amount of enzyme?
In what way does the fertilization and development of the conifer seed differ from that of the angiosperm?
Diagram the cycle of carbon during photosynthesis, carbohydrate production and breakdown, fermentation and combustion.
A very heavy rainstorm floods a mountain river, changing its course and digging a deep canyon through the soft soils of the meadow in the valley below. What happens to the mice on either side of the valley?
Discuss why is the skin on worms, the gills in fish, and the lungs in humans good epithelial surfaces for respiration. Be specific.
Theoretically, plants could increase or decrease the size of individual stomata and still achieve the same result as varying the number of stomata. But they dont do this- plants only vary stomata number, not size. Why?
What sequence of nucleotide pairs in a Drosophila gene would encode the amino acid sequence met-trp-phe-trp-met (reading from the amino terminus to the carboxyl terminus).
A protein that tests disulfide positive is oxidized. Spectrophotometry readings are taken for both unoxidized and oxidized protein.
If you wanted to make a 0.5M solution of MgSO4, how many grams of MgSO4 would you need? Assume the volume of the solution is one liter. Show your work.
Describe precisely what is microbial death? Why does a population of microbes not die instaneously when exposed to an antimicrobial agent
Suppose that you measure the OD of two E.coli cultures: culture A and culture B. The spectrophotometer gives you a reading of 2.2 for culture A and 0.02 for culture B.
A quorum sensing response in a hypothetical organism results in upregulation of one gene and downregulation of another. Suppose that preliminary experiments have been performed and these experiments have shown that homoserine lactone functions as the..
Provide a basic toxicology report of the effects of PVC on a human, including possible carcinogens or neurotoxins?
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