The N and P recommendation for a sorghum crop is 140 lbs N/ac and 40 lbs P205/ac. How much urea would you need to apply to meet (and not exceed) the N requirement if diammonium phosphate (DAP) is used to supply the P?

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A: Given that :

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Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.