What is the accumulation of nitrogenous wastes in the blood resulting in an abnormally high concentration of urea called?
A. Polyuria
B. Hematuria
C. Glomerulonephritis
D. Cystitis
E. Azotemia
Answer: E
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Which of the following occurs during depolarization?
A) Voltage-gated potassium channels open. B) Some voltage-gated sodium channels inactivate. C) Sodium flows into the cell. D) Both A and C occur. E) All of the above occur.
Which of the following is regulated by a positive feedback mechanism in females?
A) menstruation B) fertilization C) ovulation D) implantation
What is the first part of the cell that is affected when the pH of extracellular fluid changes?
A) the nucleus B) the nucleolus C) the cytosol D) the plasma membrane E) the cytoskeleton
If the potassium leak channels were suddenly blocked in a resting neuron, what would happen to its resting membrane potential?
A. It would become more negative. B. It would become more positive. C. The RMP would be unaffected. D. It would hyperpolarize.