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In: Anatomy and Physiology

[ECF] of Na+ = 145 mM, and K+ = 4.6 mM [ICF] of Na+ = 9...

[ECF] of Na+ = 145 mM, and K+ = 4.6 mM

[ICF] of Na+ = 9 mM and K+ = 155 mM

  1. How much more permeable (answer will be a whole number followed by the word "times") would the above cell be to potassium than sodium if the measured resting membrane potential was -61 mV?      

  1. Identify the analogous hormone in the thyroid axis to ACTH in the adrenal axis.

  1. Identify the protein that clears the 2nd messenger produced by the activation of a beta 1 adrenergic receptor.

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