AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

NEUROTRANSMISSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The inside of a neuron during its resting potential is
A
+70 mv
B
-70 mv
C
70 mv
D
+-70 mv
Explanation: 

Detailed explanation-1: -The resting membrane potential of a neuron is about-70 mV (mV=millivolt)-this means that the inside of the neuron is 70 mV less than the outside. At rest, there are relatively more sodium ions outside the neuron and more potassium ions inside that neuron.

Detailed explanation-2: -The resting potential is a measure of a cell’s membrane potential when the pumping of ions into the cell is balanced by the flow of ions out of the cell. The resting membrane potential of a neuron is approximately-70 mV. This measurement is the difference in voltage inside the cell relative to the outside of the cell.

Detailed explanation-3: -A neuron that is not conducting electrical signals is “resting”, usually at about −70 mV, though this varies.

Detailed explanation-4: -In humans this is said to be around-70 mV. This means that the inside of the cell is negatively charged in comparison to the outside. Resting membrane potentials are maintained by two different types of ion channels: the sodium-potassium pump and the sodium and potassium leak channels.

Detailed explanation-5: -Answer and Explanation: The movement of potassium ions mainly produces the resting potential. The potassium ions leave the cell, which causes the cytosol of the cell to become more negative and causes the exoplasmic face of the membrane to become more positive. This difference produces the resting potential.

There is 1 question to complete.