Identify the asymmetric carbons in ribose and glucose in the diagram on p.1. Remember to consider that it is not just the neighboring atoms joined to a carbon, but the entire groups, that make a carbon asymmetric. What is the difference between starch and cellulose? Why would animals store their fat in a saturated form? Suppose you treated butter with a fatty acid desaturase, an enzyme that removes hydrogen from fatty acids and creates double bonds. What would happen? The food labels below are for Skippy Extra Crunchy Peanut Butter and a “Reduced Fat” version. Compare the two for fat and carbohydrate. Is the reduced fat version better? Is a peptide bond a covalent bond or a non-covalent bond? Explain. Look at the model for Iysozyme on p.5 and identify the alpha-helices and beta-pleated sheets. Does Iysozyme have quaternary structure? Search ‘Iysozyme’ in Wikipedia. Under ‘Function’ you will see that “The amino acid side-chains glutamic acid 35 (Glu35) and aspartate 52 (Asp52) have been found to be critical to the activity of this enzyme.” (a) Consulting the table on p.4, determine what kind of side chains these are. (b) Pick a different amino acid that these two could be changed into, in order to destroy the function of the enzyme. Explain your choice.
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Question: Identify the asymmetric carbons in ribose and glucose in the diagram on p.1. Remember to consider…
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