You discover that a new chemical compound interacts with k+ voltage-dependent channels. what would be the effect on a neuron if the chemical came into contact with the axonal membrane?
a. the cell would be unable to depolarize.
b. the neuron would be unable to repolarize.
c. the cell would die.
d. the cell would be unable to generate a resting potential.

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls