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Question: E. coli is being grown to a maximum cell density of 140 grams dry cell weight per liter in a bioreactor fitted with a flat blade turbines agitation system (six blades with a w/d ratio of 1/5) that delivers a peak power input of 15 hp/1,000 gallons (gassed). Assume the maximum cell density and maximum agitation speed requirements occur at the same time in the batch cycle. Estimate the total peak heat removal requirement for the fermentation.
Throughout much of Europe, there has been a severe decline in mushroom population. On study plots in Holland, data collected since 1912 indicate that the number of mushroom species has dropped from 37 to twelve per plot in recent years.
Researchers have adapted the principles of affinity chromatography to purify different types of protein, including lectin, recombinant protein and antibodies. Describe the ligand and matrix associated with isolating each of these three proteins.
Red flowers are dominant over white flowers. The flower color gene is represented with R/r. Large leafs are dominant over small leaves. The leaf size gene is represented L/l.
Select a specific gene and a specific alteration. Explain the effects of the modifications and why it might contribute to the cancer.
Would you expect Dissolved Oxygen in water taken from the stream entering a lake to be higher or lower than Dissolved Oxygen taken from the lake itself? Give details.
Most cellular activities involve converting energy form one form to another. For each of the following cases, give a biological example and explain the significance of the conversion.
Define connective tissue? Connective tissue is responsible for many different jobs in the body. What are some of these jobs?
What is the possibility that the son would have both the Xg antigen and ichthyosis. Why is the man a major candidate for a heart attack.
Does the volume of air passing in and out of the resting subject's lungs each minute increase or reduce due to exercise? If so, was the change due to an increase in the rate of breathing,
If you analyze the diameter of the field of view for the 4X objective lens of a compound microscope with 10X oculars as 4.5 mm, what is the diameter of the field of view for the 100X objective lens?
Assume you identify a recessive mutation in the AP endonuclease in yeast. During the diploid phase of their lifecycle, the yeast are viable but haploid strains die rapidly.
Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?
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