Resting membrane potential is maintained by the sodium-potassium pump, which transports
A) Na+ out of the cell and K+ into the cell B) both Na+ and K+ out of the cell
C) both Na+ and K+ into the cell D) Na+ into the cell and K+ out of the cell
Answer: A
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Where in the body would you find low oxygen levels causing vasoconstriction and high levels causing vasodilation?
A) kidney B) lungs C) liver D) heart
If gametes were diploid like somatic cells, how many chromosomes would the zygote contain?
A) twice the diploid number, and with every succeeding generation, the chromosome number would continue to double and normal development could not occur B) triple the diploid number, and with every succeeding generation, the chromosome number would continue to triple and normal development would not occur C) half the diploid number with no change in development D) There is no relationship between gametes and somatic cells.
The posterior horns of the spinal cord contain mainly
A) sensory nuclei. B) somatic motor nuclei. C) autonomic motor nuclei. D) nerve tracts. E) sympathetic nuclei.
Glomerulonephritis may result from destruction of the glomerular capillary basement membrane.
Answer the following statement true (T) or false (F)