Numerade

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Amphiphilic molecules can form two different types of structures in water – micelles and vesicles (also called liposomes or membranes). The type of structure formed depends on the structure of the lipid. Fatty acids tend to have a conical shape – the polar head group is the "fat" part of the cone and the hydrocarbon tail is the point. Membrane lipids (found in vesicles) have two fatty acid "tails” and this gives them a cylindrical shape. Triacylglycerols have three tails and tend to be nonpolar and to form no organized shape at all. 7. Is $18:1\Delta^{9}cis$ an amphiphilic molecule? Amphipathic and amphiphilic are synonyms. 8. Based on what you know about thermodynamics and the behavior of amphiphilic molecules in water, predict how $18:1\Delta^{9}cis$ molecules would behave in water and justify your prediction with an exam-quality answer.

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What percentage of Susan's money will be invested in stocks A, B, and G respectively?

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5. An unknown element is found to have three isotopes with the masses and relative abundances shown in the table below. Use this information to calculate the average atomic mass for this unknown element in amu. Isotope Mass (amu) Relative Abundance (%) 1 143.55 65.23 2 145.83 26.98 3 149.62 7.79 a) 146.33 amu 143.55 145.83+ 149.62 439 3 =146.33? correct b) 144.64 amu c) 132.98 amu d) 143.98 amu e) 146.32 amu 439

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Find the derivative. f(x) = \ln \left(xe^{\sqrt{x}} + 5\right) f'(x) =

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C. Which of the following objects is considered to be in free fall? A. A skydiver jumping out of a plane B. A rocket launching into space C. A bird flying in the sky D. A car driving down a hill

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Which is a leading question? What colour do you favour for the repainting of the town water tower? Which political party is best suited to governing the country? Do you favour government regulation of gasoline prices to stop the perceived gouging at the pumps? What animal should be the mascot of the school football team?

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Find the position vector of the point which divides the line joining the points (1,3) and (4,5) internally in the ratio 1:2.

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It is super important to identify what is reinforcing a behavior before you make a plan to extinguish it. True False

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Texts: Mainly need help with the graph Spontaneity of processes is indicated by a negative ΔG = -ΔH + TΔS or a positive ΔS. Scenario 1: There are processes where the ΔH is large and negative (exothermic) and although the contribution of ΔS is insignificant, the ΔG is still negative. Scenario 2: Similarly, there are processes where ΔH is very small, but ΔS of the universe is so large that the process becomes spontaneous. Fill in the blank spaces with appropriate sign (+ or -) and a qualitative value (large or small) using the information presented above. Scenario # ΔH ΔS or ΔS ΔG Using this idea and your answer above, identify which of the scenarios (1 or 2) is taking place when two or more non-polar groups from the peptide interact with each other, instead of interacting with the solvent.

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A negative charge of -0.008 C exerts an attractive force of 40 N on a second charge that is 10 m away. What is the magnitude of the second charge?

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