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- Lefer to the figure showing the molecular structure of dimethylmercury. H–C-Hg C-H H. Exposure of human skin to a single drop of dimethylmercury can lead to death, as it is highly poisonous and passes easily cell membranes. Based on its structure, why is it able to pass so easily through cell membranes? I-0-I IICIHA molecule with the chemical formula C6H12O6 is probably aAs2Cl3 chemical name
- The structure labeled “2” is:Iodine values change during oil hydrogenation. Why these values change during hydrogenation and why would one wish to hydrogenate edible oils?Cellular pH is slightly alkaline (pH 7.4), explain why a seemingly slight decrease in pH to 6.8 can have very serious consequences for the organism, becoming fatal?
- Heteropolysaccharide structures are defined by: Question 23 options: Two or more different monosaccharides in the same polymer Being exclusively branched Always being bonded to a protein All of the aboveDehalogenase enzymes catalyze the clevage of C-X bonds. One such dehalogenase catalyzes the following reaction. An active site aspartate is thought to carry out the initial nucleophilic attack that expels the chloride. Select the most likely intermediate in the reaction. (Note the stereochemistry. Refer to P11.19 in the textbook if needed.) O O A C D OE -CH₂ H H₂C™ CO₂ H B CO₂ CI N H₂O Cr CO₂ H CO₂ нотум CH3 D CO₂ five N E CH₂The OH group of the serine side chain (R-OH) can undergo dissociation to form R-O- and H+. However, the ratio of the protonated to unprotonated forms of this group at pH 7 is approximately 1,000,000 to 1. Calculate the pKa of the serine OH group.