BIOL273 Lecture Notes - Lecture 2: Resting Potential, Electronegativity, Nernst Equation
23 Apr 2018
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Which of the following is a/are sensory neurons: anaxonic, pseudounipolar, bipolar, b and c, all of the above. Nernst equation: used to predict whether an ion will move into/out of the cell, measured in millivolts. Membrane potential: every single cell in your body has a membrane potential, all cells are net electronegative, final charges are negative, excitable cells/tissues, cells/tissues that are able to use changes of membrane potential. Concentrations of ions: you cannot take the summation of equilibrium potentials, you can"t add. Gated channels: mechanical gated, chemical gated, voltage gated. These channels affect the concentrations of ion entering and exiting a cell. True or false: na+, k+, and ca+2 ion concentrations are higher outside of a neuron: true, false. Biol 273 weekly lecture review notes 2 | rebecca yu. Match each ions movement with the associated change (depolarizing/hyperpolarizing) in membrane potential: na+ entry depolarizing, cl- entry depolarizing hyperpolarizing because of negative charge, k+ exit hyperpolarizing, ca+2 entry depolarizing.
