59. Saltatory Conduction
a. occurs in unmyelinated nerve fiber
b. is slower than conduction by local current flow because the myelin acts as an insulator to show the impulse down
c. involves the impulse jumping from one node of ranvier ro adjacent node
d. refers to the action potential spreading from one schwann cell to the adjacent schwann cell.
e. more than one of the above is correct
63. the universal energy currency in cells is
a. RNA b. ATP c. Glucose d. Glucogen e. DNA
66. which of the classes of hormones triggers the synthesis of new intracellular proteins within the target cell (via stimulation of DNA transcription and translation)?
a. peptides b. catecholamines c. steroids d. thyroid hormone e. both c and d are correct
68. hormones,
a. are all similar chemical composition
b. combine with specific receptors on the target cell's surface or inside the target cell
c. are secreted at a constatnt rate
d. all act by activating adenyl cyclase, which transforms ATP into cAMP
e. all of the above are correct
59. Saltatory Conduction
a. occurs in unmyelinated nerve fiber
b. is slower than conduction by local current flow because the myelin acts as an insulator to show the impulse down
c. involves the impulse jumping from one node of ranvier ro adjacent node
d. refers to the action potential spreading from one schwann cell to the adjacent schwann cell.
e. more than one of the above is correct
63. the universal energy currency in cells is
a. RNA b. ATP c. Glucose d. Glucogen e. DNA
66. which of the classes of hormones triggers the synthesis of new intracellular proteins within the target cell (via stimulation of DNA transcription and translation)?
a. peptides b. catecholamines c. steroids d. thyroid hormone e. both c and d are correct
68. hormones,
a. are all similar chemical composition
b. combine with specific receptors on the target cell's surface or inside the target cell
c. are secreted at a constatnt rate
d. all act by activating adenyl cyclase, which transforms ATP into cAMP
e. all of the above are correct
