Determine the effect of hypokalemia on resting membrane potential
A) Hypokalemia has no effect on resting membrane potential.
B) Hypokalemia causes the membrane potential to become hyperpolarized.
C) Hypokalemia causes the membrane potential to become depolarized.
D) Hypokalemia promotes a more positive resting membrane potential.
Answer: B
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Graded potentials
A) produce an effect that increases with distance from the point of stimulation. B) produce an effect that spreads actively across the membrane surface. C) may be either a depolarization or a hyperpolarization. D) are often all-or-none. E) cause repolarization.
The intercalated disc of cardiac muscle cells possess a specialized form of adhering junction termed a(n) ________.
A) desmosome B) macula adherens C) gap junction D) fascia adherens E) CAM
Which of the following is/are true statement(s) regarding the law of gravitation?
A. All bodies are attracted to one another with a force proportional to the product of their masses. B.All bodies are attracted to one another with a force inversely proportional to the square of the distance between them. C. The law of gravitation ceases to exist outside the earth's atmosphere. D. both A and B E. all of the above
Of the organelles listed, which one does NOT contain microtubules?
A. microvilli B. flagella C. centrioles D. cilia E. spindle fibers