Recent content by lha08

Homework Statement Soap is amphipathic; it has a hydrophobic hydrocarbon and a polar carboxylate group. But here's where I'm getting confused; in oil, such as peanut oil for example, is it amphipathic or only hydrophobic? I looked everywhere and in some books it says that its amphipathic...

Homework Statement I've been looking over the internet about Robert Hooke but there seems to be conflicting information about his work. Now I know that he was the first to discover the cell using a microscope and Anton van Leeuwenhoek was the first to discover microbes using a much stronger...

Homework Statement I'm a little confused as to how the nucleolus in a eukaryotic cell manages to synthesize proteins. For example, in the nucleolus, does it contain DNA that it uses to synthesize ribosomal RNA, which then synthesizes ribosomal subunits? Then the ribosomal subunits go out into...

Homework Statement I'm a little confused as to the difference between both glucoses...when we draw the Fisher projections for both D and L glucoses, the hydrogens and hydroxyls will alternate in opposite directions, but does that mean when we draw the Haworth representation, are the H and OH...

Homework Statement When forming a micelle, molecules such as fatty acids, detergents and lysophospholids form micelles on the basis that the cross sectional area of the head group (I'm guessing the polar part that interacts with water) must be greater than the acyl side chain...but what...

I'm just wondering, in terms of the activation energy, if the enzyme binds complementary to the transition state, is the activation energy first lowered by the binding energy that is released when some weak noncovalent interactions are formed between the enzyme-substrate complex, and then the...

Homework Statement I'm a little confused as to the concept of activation energy, transition state, and reaction intermediates...For example, I know that the activation energy is the difference between the ground state of the reactants and the transition state but on a diagram, does the top...

Homework Statement A sample of arterial blood was found to contain 2.6 X 10-2 mol/L dissolved CO2. The pH of the sample was 7.43. If it is assumed that in solution the CO2 forms H2CO3, what is the HCO3- concentration in this blood sample? (pKa for H2CO3 is 6.1) Homework Equations...

Homework Statement The pKa values for the three ionizable groups on tyrosine are pKa (--COOH)=2.2, pKa (--NH3+)=9.11, and pKa (R)=10.07. In which pH ranges will this amino acid have the greatest buffering capacity? A) At all pH's between 2.2 and 10.07 B) At pH's near 7.1 C) At pH's between...

like for some reason, I'm still kind of confused...like this is what I've got... (231-93)/93 = 148.39% more potassium in dandelions Is this right or should it be the opposite way meaning (231-93)/231= 59.74% more potassium in dandelions...?

sorry but i don't quite get what you said for (2)...

Homework Statement So I'm drawing a complete blank on how to figure out some easy math...like given that there is 231 mg of potassium in a dandelion and 93 mg of potassium in lettuce, how much more (%wise) is there of potassium in dandelions...Homework Equations The Attempt at a Solution i...

Like, are you like annoyed by like the way I'm like writing my message? Like, if you like don't like it, like i suggest like you like find something else to like you know worry about besides like the way i write. Like.

Homework Statement I'm a little confused, let's say i do a titration curve for a weak acid, at some point there's a buffering range near the pKa. Like i know that if we add a strong base like NaOH to acetic acid in a water solvent, then the OH- will combine with the H+ (hydronium ion) which...

So if i understood correctly, in an aqueous environment, the protein prefers to make hydrogen bonds with water via the N--H group of the amine (and also the C double bonded O in the carboxyl?) and therefore the more stable conformation is the unfolded protein? Like since most protein...