The membrane potential in a typical cell
1.is the sum of the individual potentials of all ions.
2.is positive on the inside relative to the outside of the cell.
3.is the result of a charge difference between the inner and outer surfaces of the membrane.
4.is entirely the result of the difference in potassium ion concentrations on the two sides of the membrane.
5.is entirely the result of the difference in cation concentrations on the two sides of the membrane.
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The ____________ is a widespread network of interconnected neurons running throughout the brain stem and into the thalamus and it receives and integrates all incoming sensory input
Fill in the blank(s) with correct word
Carbonic anhydrase is crucial for
a. CO2 transport in blood. b. conversion of CO2 into bicarbonate ion. c. production of NO. d. both (a) and (b) above. e. both (a) and (c) above.
A _____ is a polar covalent bond that joins two amino acids together through a synthesis reaction.
Fill in the blank(s) with the appropriate word(s).
RU-486, taken in conjunction with a prostaglandin, induces uterine contractions.
a. true b. false