A carbon dioxide laser is an infrared laser. A CO2 laser with a cavity length of 53.00 cm oscillates in the m = 100,000 mode. What are the wavelength and frequency of the laser beam?
Thursday, May 19, y Lecture 6 Intercellular Chemical Messengers Paracrine • Binds to receptor • Secretory ———> target cell • Can only act upon nearby cells • EX: Histamine causes blood vessels to dilate • Short distance signals Neurotransmitters • Pre and post synaptic neuron • Electricity Hormones • Released into blood • Secretory cells find target cells Neurohormones Membrane Transport Solubility • ECF and ICF • Polar and Nonpolar Size • Small polar molecules can get through protein channels 1 Thursday, May 19, y • Large polar molecules in a carrier Active transport