Explain why metabolism of free fatty acids occurs in the citric acid cycle rather glycolysis.
Free fatty acids enter the cell and are converted to Long-chain acyl-CoA. Carnitine dependent transport across the mitochondrial membranes yields acetyl CoA. Glycolysis requires glucose for entry, and free fatty acids cannot be converted to glucose, as they already enter as Acetyl CoA for breakdown. Additionally, glycolysis occurs in the cytosol, not the mitochondria.
In column A of the data table, how can you get excel to highlight values <5?
Select column A and click "conditional formatting" at the "home" ribbon. Scroll over "highlight cell rules" and then click "Less than...".
What is the charge of histidine at a pH of 9 and why?
The amide group on the histidine side chain is protonated at pH 9, thus it has a positive charge.