Nuclei with an number of protons and neutrons possess a property called spin. Nuclear spin can be thought as either up or down with the spin states normally possessing energy levels while generating equal but opposite When a molecule is placed in an NMR, a large field is applied making the spin states become of unequal energy, with the spin that generates a magnetic field in the same direction of the applied magnetic field being in energy. The NMR then uses to 'flip the spin' of each nuclei, wherein each nuclei will require a specific energy level of radiation that corresponds to its difference in energy of spin states, this is often called the nuclei's frequency, which is measured by the NMR and translated to teh final spectra.

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy?