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Which fatty acid -palmitic, stearic, palmitoleic, or arachidonic, would have lowest m.p. and explain why. Which would be chiral? A)glyceryl tripalmitate,B) glyceryl 1-stearate, 2,3 dipalmitate,C) glyceryl 2-stearate, 1,3-dipalmitate. Explain why. A lipid is isolated and treated with boiling aqueous NaOH. The products obtained are sphingosine, sodium stearate,glucose,galactose and mannose. To […]

Q1. Synaptic signalling between adjacent neurons is like hormone signalling in which of the next ways? A) It sends its signal molecules through blood. B) It sends its signal molecules quite the distance. C) It needs calcium ions. D) It requires binding of a signalling molecule to a receptor. E) […]

1. What was the general attitude of the people and the government of the US during the 1800’s towards nature? What specific acts were put in place to exemplify this attitude? What is the manifest destiny? 2. Why did the Railroad companies to hire artists? What were these artists trying to convey […]

Q1. If relatively small carbonaceous chondrites from space were a significant source of Earth’s original amino acids, then which two of these would have been most important in permitting their organic materials to survive impact with Earth? I. Carbonaceous chondrites must contain no D-amino acids. II. Earth’s early atmosphere must […]