In the rearrangement of Ohm\'s Law: I(x) = g(x) (Vm - Ex) discussed in lecture,
ID: 97750 • Letter: I
Question
In the rearrangement of Ohm's Law: I(x) = g(x) (Vm - Ex) discussed in lecture, g(x) represents _____, while (Vm - Ex) represents _____. a. How easily ion "x" can move through the membrane/the electrochemical force on ion "x". b. The Nernst potential for ion "x"/the electrochemical force on ion "x" c. The voltage across the membrane at rest/the current of ion "x". d. The current of ion "x"/the electrical gradient for ion "x" Which statement(s) below accurately describe the passive forces acting on sodium and potassium in the average neuron? a. The electrical gradient pushes both ions out of the cell b. The net movement for sodium is out of the cell c. Potassium is being pushed out of the cell by its concentration gradient d. The net movement for potassium is into the cells e. Sodium is being pushed out of the cell by its concentration gradient Which list below contains the components of a reflex in order: a. target, receptor, efferent, integrator, afferent b. receptor, efferent, integrator, afferent, target c. receptor, afferent, integrator, efferent, target d. efferent, afferent, receptor, target, integrator e. afferent, receptor, integrator, efferent, target Regarding the lobes of Cerebrum/Neocortex, somatosensory cortex can be found in the _____lobe, whereas visual processing can be found in the _____ lobe? a. Temporal//frontal b. Occipital//parietal c. Parietal//temporal d. Parietal//occipital e. Frontal//occipital When the membrane of a neuron is at rest all of the following are true except: a. The voltage across the cell membrane is negative and stable b. The membrane is significantly more permeable to potassium than to sodium c. The sodium-potassium pump moves 3 sodium ions out of the cell for every 2 potassium ions it moves in d. Sodium and Potassium are moving through voltage gated channelsExplanation / Answer
Answer to first question:
In physiology, ionic current is produced when ions move across cell membrane. The equation is given as: I(x)=g(x)(Vm-Ex).
I(x) represent current ,
G(x) is conductance, determined by how easily ion x moves through the membrane.
Vm-Ex represents the driving force on ion x
Thus , correct option is (a).