Biophysics

chemical shift in the NMR spectra is related to

 Indicate the true sentence

to determine images dependent mostly on proton density, the operator needs to set recordings at (abbreviations: TR – repetition time, TE – time to echo)

Choose the correct statement for the neuromuscular junction:

Indicate the phenomena that do not contribute to electrodiffusion:

Which objects within the human’s body have the highest (nearly total) ability to reflect the ultrasound beam:

 Sound velocity:

 We consider an artificial lipid bilayer to which some non-selective channels (channels permeable equally to anions and cations) were incorporated. The resting potential of this embrace will take thevalue: (assume that electrolytes surrounding the membrane are physiological, i.e. on one side cytoplasmic and on the other extracellular)

The considered system can be found in the two states: energy U1 and state S2 characterized by the energy U2:

lectric charge q is moving with velocity v in the magnetic field characterized by induction B. Assuming that velocity vector is perpendicular to the induction vector B, the force acting on the charge will have the orientation: