Biophysics Exam 21.02.2024

[Salatenjoyer]

Sheet 1 :
- Sketch of eukaryotic cell given. Name 4 organelles and briefly explain their function
- Give the structure of the cell membrane and explain what its purpose is
- EM microscopy vs Light microscopy : give 3 of the main differences. Then, give 3 structures in the cell visible only with EM, and 3 other visible by both methods

Sheet 2 :
- Explain Electrophoresis with a sketch. What are the carriers used ? What values of voltage are used ?
- Mass Spectroscopy : a sketch is given, find name for each part. Explain principle.
- Alpha, beta, gamma dispersion : give the frequency range for each; What does beta dispersion tell us ?

Sheet 3 :
- TTX is a neurotoxin found in Puffer fish. It prevents the voltage gated channels from opening. Does it have an impact on the membrane resting potential? Explain
- Neuronal integration ; explain the "firing rule " with EPSP and IPSP
- Explain the refractory phase

Sheet 4
- Cardiac fibrillation : give explanation + draw sketch + give solution
- Complex permittivity : what is it ? Draw it in complex plane
- Non ionizing radiation characteristic + give photochemical effect examples