Which of the following is not true regarding the establishment of a neuron's resting membrane potential?
A) Chemical and electrical forces both favor sodium ions entering the cell.
B) Electrical forces do not push sodium ions into the cell.
C) The chemical gradient for potassium ions tends to drive them out of the cell.
D) Ion pumps in the plasma membrane eject sodium ions as fast as they cross the membrane.
E) Resting membrane permeability to Na+ is very low.
B
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Drugs that stimulate alpha receptors, causing constriction of peripheral vessels, are
A) sympathetic blocking agents. B) sympathomimetic. C) parasympathetic blocking agents. D) parasympathomimetic. E) autonomic blocking agents.
Pyruvate derived from glycolysis is transported into which structure to continue the process of cellular respiration?
a. mitochondrial matrix b. mitochondrial cristae c. cytosol d. nucleus e. lysosome
A brain that has periodic “electrical storms” involving major changes in the electrophysiological state of sets of neurons has a disorder called ___________________.
Fill in the blank(s) with the appropriate word(s)
All of the following processes are important in follicular development. Which one occurs first?
A. GnRH secretion B. LH secretion C. Estrogen secretion D. Prolactin secretion E. FSH secretion