Raising the potassium ion concentration in the extracellular fluid surrounding a nerve cell will have what effect?
A) depolarize it
B) hyperpolarize it
C) increase the magnitude of the potassium equilibrium potential
D) decrease the magnitude of the potassium equilibrium potential
E) both hyperpolarize it and decrease the magnitude of the potassium equilibrium potential
E
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A triglyceride consists of
A. 3 fatty acids and 1 glycerol. B. 3 glucose molecules. C. 3 fatty acids and 3 phosphate groups. D. 3 glycerols and 1 fatty acid.
In the diagram, where is the olfactory foramina?
a) C b) D c) E d) F e) G
A woman with excessive body hair, a deep voice, and an enlarged clitoris shows the outward symptoms of which hormonal dysfunction?
What will be an ideal response?
A nucleotide of DNA contain three components: ________, ________, and ________
A) deoxyribose; a phosphate group; nitrogen-containing base B) ribose; three phosphate groups; nitrogen-containing base C) ribose; two phosphate groups; acid group D) ribose; a phosphate group; nitrogen-containing base